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Finding the Fourth Proportional to 72,545.80, 108,672.90 and 48,926.20

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Solution

The fourth proportional to 72,545.80, 108,672.90 and 48,926.20 is: 73,290.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,545.80 : 108,672.90 = 48,926.20 : x
  2. Step 2: Convert to fraction form
    72,545.80/108,672.90 = 48,926.20/x
  3. Step 3: Cross multiply
    72,545.80x = 108,672.90 × 48,926.20
  4. Step 4: Simplify right side
    72,545.80x = 5,316,952,039.98
  5. Step 5: Solve for x
    x = 5,316,952,039.98/72,545.80
  6. Step 6: Final answer
    x = 73,290.97

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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.