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Finding the Fourth Proportional to 132,397.52, 198,484.72 and 57,461.28

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Solution

The fourth proportional to 132,397.52, 198,484.72 and 57,461.28 is: 86,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,397.52 : 198,484.72 = 57,461.28 : x
  2. Step 2: Convert to fraction form
    132,397.52/198,484.72 = 57,461.28/x
  3. Step 3: Cross multiply
    132,397.52x = 198,484.72 × 57,461.28
  4. Step 4: Simplify right side
    132,397.52x = 11,405,186,071.64
  5. Step 5: Solve for x
    x = 11,405,186,071.64/132,397.52
  6. Step 6: Final answer
    x = 86,143.50

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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.