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Finding the Fourth Proportional to 52,732.80, 79,239.60 and 29,059.20

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Solution

The fourth proportional to 52,732.80, 79,239.60 and 29,059.20 is: 43,666.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,732.80 : 79,239.60 = 29,059.20 : x
  2. Step 2: Convert to fraction form
    52,732.80/79,239.60 = 29,059.20/x
  3. Step 3: Cross multiply
    52,732.80x = 79,239.60 × 29,059.20
  4. Step 4: Simplify right side
    52,732.80x = 2,302,639,384.32
  5. Step 5: Solve for x
    x = 2,302,639,384.32/52,732.80
  6. Step 6: Final answer
    x = 43,666.17

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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.