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Finding the Fourth Proportional to 92,882.88, 139,503.60 and 79,585.92

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Solution

The fourth proportional to 92,882.88, 139,503.60 and 79,585.92 is: 119,532.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,882.88 : 139,503.60 = 79,585.92 : x
  2. Step 2: Convert to fraction form
    92,882.88/139,503.60 = 79,585.92/x
  3. Step 3: Cross multiply
    92,882.88x = 139,503.60 × 79,585.92
  4. Step 4: Simplify right side
    92,882.88x = 11,102,522,349.31
  5. Step 5: Solve for x
    x = 11,102,522,349.31/92,882.88
  6. Step 6: Final answer
    x = 119,532.49

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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.