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Finding the Fourth Proportional to 71,957.61, 99,333.89 and 52,803.54

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Solution

The fourth proportional to 71,957.61, 99,333.89 and 52,803.54 is: 72,892.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,957.61 : 99,333.89 = 52,803.54 : x
  2. Step 2: Convert to fraction form
    71,957.61/99,333.89 = 52,803.54/x
  3. Step 3: Cross multiply
    71,957.61x = 99,333.89 × 52,803.54
  4. Step 4: Simplify right side
    71,957.61x = 5,245,180,769.95
  5. Step 5: Solve for x
    x = 5,245,180,769.95/71,957.61
  6. Step 6: Final answer
    x = 72,892.65

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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.