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Finding the Fourth Proportional to 134,587.20, 201,807.90 and 55,612.20

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Solution

The fourth proportional to 134,587.20, 201,807.90 and 55,612.20 is: 83,388.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,587.20 : 201,807.90 = 55,612.20 : x
  2. Step 2: Convert to fraction form
    134,587.20/201,807.90 = 55,612.20/x
  3. Step 3: Cross multiply
    134,587.20x = 201,807.90 × 55,612.20
  4. Step 4: Simplify right side
    134,587.20x = 11,222,981,296.38
  5. Step 5: Solve for x
    x = 11,222,981,296.38/134,587.20
  6. Step 6: Final answer
    x = 83,388.18

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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.