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Finding the Fourth Proportional to 132,320.80, 182,602.92 and 71,891.68

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Solution

The fourth proportional to 132,320.80, 182,602.92 and 71,891.68 is: 99,210.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,320.80 : 182,602.92 = 71,891.68 : x
  2. Step 2: Convert to fraction form
    132,320.80/182,602.92 = 71,891.68/x
  3. Step 3: Cross multiply
    132,320.80x = 182,602.92 × 71,891.68
  4. Step 4: Simplify right side
    132,320.80x = 13,127,630,691.71
  5. Step 5: Solve for x
    x = 13,127,630,691.71/132,320.80
  6. Step 6: Final answer
    x = 99,210.64

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1.5x scale

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.