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Finding the Fourth Proportional to 110,427, 152,389.97 and 62,681.15

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Solution

The fourth proportional to 110,427, 152,389.97 and 62,681.15 is: 86,500.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,427 : 152,389.97 = 62,681.15 : x
  2. Step 2: Convert to fraction form
    110,427/152,389.97 = 62,681.15/x
  3. Step 3: Cross multiply
    110,427x = 152,389.97 × 62,681.15
  4. Step 4: Simplify right side
    110,427x = 9,551,977,492.71
  5. Step 5: Solve for x
    x = 9,551,977,492.71/110,427
  6. Step 6: Final answer
    x = 86,500.38

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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.