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Finding the Fourth Proportional to 68,045.68, 93,781.06 and 55,341.01

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Solution

The fourth proportional to 68,045.68, 93,781.06 and 55,341.01 is: 76,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,045.68 : 93,781.06 = 55,341.01 : x
  2. Step 2: Convert to fraction form
    68,045.68/93,781.06 = 55,341.01/x
  3. Step 3: Cross multiply
    68,045.68x = 93,781.06 × 55,341.01
  4. Step 4: Simplify right side
    68,045.68x = 5,189,938,579.27
  5. Step 5: Solve for x
    x = 5,189,938,579.27/68,045.68
  6. Step 6: Final answer
    x = 76,271.39

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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.