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Finding the Fourth Proportional to 134,655.60, 201,934.80 and 68,073.60

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Solution

The fourth proportional to 134,655.60, 201,934.80 and 68,073.60 is: 102,085.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,655.60 : 201,934.80 = 68,073.60 : x
  2. Step 2: Convert to fraction form
    134,655.60/201,934.80 = 68,073.60/x
  3. Step 3: Cross multiply
    134,655.60x = 201,934.80 × 68,073.60
  4. Step 4: Simplify right side
    134,655.60x = 13,746,428,801.28
  5. Step 5: Solve for x
    x = 13,746,428,801.28/134,655.60
  6. Step 6: Final answer
    x = 102,085.83

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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.