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Finding the Fourth Proportional to 133,706.68, 200,508.18 and 71,343.16

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Solution

The fourth proportional to 133,706.68, 200,508.18 and 71,343.16 is: 106,987.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,706.68 : 200,508.18 = 71,343.16 : x
  2. Step 2: Convert to fraction form
    133,706.68/200,508.18 = 71,343.16/x
  3. Step 3: Cross multiply
    133,706.68x = 200,508.18 × 71,343.16
  4. Step 4: Simplify right side
    133,706.68x = 14,304,887,167.05
  5. Step 5: Solve for x
    x = 14,304,887,167.05/133,706.68
  6. Step 6: Final answer
    x = 106,987.08

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1.5x scale

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.