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Finding the Fourth Proportional to 68,303.85, 94,243.28 and 41,445.74

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Solution

The fourth proportional to 68,303.85, 94,243.28 and 41,445.74 is: 57,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,303.85 : 94,243.28 = 41,445.74 : x
  2. Step 2: Convert to fraction form
    68,303.85/94,243.28 = 41,445.74/x
  3. Step 3: Cross multiply
    68,303.85x = 94,243.28 × 41,445.74
  4. Step 4: Simplify right side
    68,303.85x = 3,905,981,801.18
  5. Step 5: Solve for x
    x = 3,905,981,801.18/68,303.85
  6. Step 6: Final answer
    x = 57,185.38

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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.