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Finding the Fourth Proportional to 72,322.59, 108,554.04 and 34,909.02

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Solution

The fourth proportional to 72,322.59, 108,554.04 and 34,909.02 is: 52,397.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,322.59 : 108,554.04 = 34,909.02 : x
  2. Step 2: Convert to fraction form
    72,322.59/108,554.04 = 34,909.02/x
  3. Step 3: Cross multiply
    72,322.59x = 108,554.04 × 34,909.02
  4. Step 4: Simplify right side
    72,322.59x = 3,789,515,153.44
  5. Step 5: Solve for x
    x = 3,789,515,153.44/72,322.59
  6. Step 6: Final answer
    x = 52,397.39

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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.