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Finding the Fourth Proportional to 74,997.66, 112,519.53 and 25,753.50

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Solution

The fourth proportional to 74,997.66, 112,519.53 and 25,753.50 is: 38,638.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,997.66 : 112,519.53 = 25,753.50 : x
  2. Step 2: Convert to fraction form
    74,997.66/112,519.53 = 25,753.50/x
  3. Step 3: Cross multiply
    74,997.66x = 112,519.53 × 25,753.50
  4. Step 4: Simplify right side
    74,997.66x = 2,897,771,715.86
  5. Step 5: Solve for x
    x = 2,897,771,715.86/74,997.66
  6. Step 6: Final answer
    x = 38,638.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.