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Finding the Fourth Proportional to 110,655.80, 152,715.06 and 62,909.03

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Solution

The fourth proportional to 110,655.80, 152,715.06 and 62,909.03 is: 86,820.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,655.80 : 152,715.06 = 62,909.03 : x
  2. Step 2: Convert to fraction form
    110,655.80/152,715.06 = 62,909.03/x
  3. Step 3: Cross multiply
    110,655.80x = 152,715.06 × 62,909.03
  4. Step 4: Simplify right side
    110,655.80x = 9,607,156,154.80
  5. Step 5: Solve for x
    x = 9,607,156,154.80/110,655.80
  6. Step 6: Final answer
    x = 86,820.18

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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.