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Finding the Fourth Proportional to 134,612.40, 201,902.52 and 55,717.20

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Solution

The fourth proportional to 134,612.40, 201,902.52 and 55,717.20 is: 83,569.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,612.40 : 201,902.52 = 55,717.20 : x
  2. Step 2: Convert to fraction form
    134,612.40/201,902.52 = 55,717.20/x
  3. Step 3: Cross multiply
    134,612.40x = 201,902.52 × 55,717.20
  4. Step 4: Simplify right side
    134,612.40x = 11,249,443,087.34
  5. Step 5: Solve for x
    x = 11,249,443,087.34/134,612.40
  6. Step 6: Final answer
    x = 83,569.14

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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.