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Finding the Fourth Proportional to 62,403, 86,116.14 and 34,108.80

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Solution

The fourth proportional to 62,403, 86,116.14 and 34,108.80 is: 47,070.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,403 : 86,116.14 = 34,108.80 : x
  2. Step 2: Convert to fraction form
    62,403/86,116.14 = 34,108.80/x
  3. Step 3: Cross multiply
    62,403x = 86,116.14 × 34,108.80
  4. Step 4: Simplify right side
    62,403x = 2,937,318,196.03
  5. Step 5: Solve for x
    x = 2,937,318,196.03/62,403
  6. Step 6: Final answer
    x = 47,070.14

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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.