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Finding the Fourth Proportional to 132,818.59, 183,284.32 and 72,387.93

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Solution

The fourth proportional to 132,818.59, 183,284.32 and 72,387.93 is: 99,892.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,818.59 : 183,284.32 = 72,387.93 : x
  2. Step 2: Convert to fraction form
    132,818.59/183,284.32 = 72,387.93/x
  3. Step 3: Cross multiply
    132,818.59x = 183,284.32 × 72,387.93
  4. Step 4: Simplify right side
    132,818.59x = 13,267,572,526.26
  5. Step 5: Solve for x
    x = 13,267,572,526.26/132,818.59
  6. Step 6: Final answer
    x = 99,892.44

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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.