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Finding the Fourth Proportional to 159,545.64, 220,172.98 and 87,925.66

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Solution

The fourth proportional to 159,545.64, 220,172.98 and 87,925.66 is: 121,337.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,545.64 : 220,172.98 = 87,925.66 : x
  2. Step 2: Convert to fraction form
    159,545.64/220,172.98 = 87,925.66/x
  3. Step 3: Cross multiply
    159,545.64x = 220,172.98 × 87,925.66
  4. Step 4: Simplify right side
    159,545.64x = 19,358,854,137.63
  5. Step 5: Solve for x
    x = 19,358,854,137.63/159,545.64
  6. Step 6: Final answer
    x = 121,337.41

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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.