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Finding the Fourth Proportional to 60,118.30, 82,981.11 and 38,897.02

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Solution

The fourth proportional to 60,118.30, 82,981.11 and 38,897.02 is: 53,689.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,118.30 : 82,981.11 = 38,897.02 : x
  2. Step 2: Convert to fraction form
    60,118.30/82,981.11 = 38,897.02/x
  3. Step 3: Cross multiply
    60,118.30x = 82,981.11 × 38,897.02
  4. Step 4: Simplify right side
    60,118.30x = 3,227,717,895.29
  5. Step 5: Solve for x
    x = 3,227,717,895.29/60,118.30
  6. Step 6: Final answer
    x = 53,689.44

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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.