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Finding the Fourth Proportional to 158,545.92, 218,622.44 and 120,375.48

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Solution

The fourth proportional to 158,545.92, 218,622.44 and 120,375.48 is: 165,988.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,545.92 : 218,622.44 = 120,375.48 : x
  2. Step 2: Convert to fraction form
    158,545.92/218,622.44 = 120,375.48/x
  3. Step 3: Cross multiply
    158,545.92x = 218,622.44 × 120,375.48
  4. Step 4: Simplify right side
    158,545.92x = 26,316,781,153.77
  5. Step 5: Solve for x
    x = 26,316,781,153.77/158,545.92
  6. Step 6: Final answer
    x = 165,988.38

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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.