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Finding the Fourth Proportional to 132,503.52, 182,867.76 and 98,911.20

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Solution

The fourth proportional to 132,503.52, 182,867.76 and 98,911.20 is: 136,507.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,503.52 : 182,867.76 = 98,911.20 : x
  2. Step 2: Convert to fraction form
    132,503.52/182,867.76 = 98,911.20/x
  3. Step 3: Cross multiply
    132,503.52x = 182,867.76 × 98,911.20
  4. Step 4: Simplify right side
    132,503.52x = 18,087,669,582.91
  5. Step 5: Solve for x
    x = 18,087,669,582.91/132,503.52
  6. Step 6: Final answer
    x = 136,507.09

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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.