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Finding the Fourth Proportional to 68,118.90, 94,006.74 and 41,246.22

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Solution

The fourth proportional to 68,118.90, 94,006.74 and 41,246.22 is: 56,921.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,118.90 : 94,006.74 = 41,246.22 : x
  2. Step 2: Convert to fraction form
    68,118.90/94,006.74 = 41,246.22/x
  3. Step 3: Cross multiply
    68,118.90x = 94,006.74 × 41,246.22
  4. Step 4: Simplify right side
    68,118.90x = 3,877,422,679.52
  5. Step 5: Solve for x
    x = 3,877,422,679.52/68,118.90
  6. Step 6: Final answer
    x = 56,921.39

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Double scale
Find fourth proportional to 68,119.90, 94,008.12 and 41,247.22
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.