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Finding the Fourth Proportional to 71,957.59, 99,328.83 and 54,104.44

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Solution

The fourth proportional to 71,957.59, 99,328.83 and 54,104.44 is: 74,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,957.59 : 99,328.83 = 54,104.44 : x
  2. Step 2: Convert to fraction form
    71,957.59/99,328.83 = 54,104.44/x
  3. Step 3: Cross multiply
    71,957.59x = 99,328.83 × 54,104.44
  4. Step 4: Simplify right side
    71,957.59x = 5,374,130,723.01
  5. Step 5: Solve for x
    x = 5,374,130,723.01/71,957.59
  6. Step 6: Final answer
    x = 74,684.70

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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.