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Finding the Fourth Proportional to 71,951.76, 99,310.32 and 48,088.08

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Solution

The fourth proportional to 71,951.76, 99,310.32 and 48,088.08 is: 66,372.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,951.76 : 99,310.32 = 48,088.08 : x
  2. Step 2: Convert to fraction form
    71,951.76/99,310.32 = 48,088.08/x
  3. Step 3: Cross multiply
    71,951.76x = 99,310.32 × 48,088.08
  4. Step 4: Simplify right side
    71,951.76x = 4,775,642,612.99
  5. Step 5: Solve for x
    x = 4,775,642,612.99/71,951.76
  6. Step 6: Final answer
    x = 66,372.84

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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.