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Finding the Fourth Proportional to 177,545.80, 266,280.30 and 77,705.80

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Solution

The fourth proportional to 177,545.80, 266,280.30 and 77,705.80 is: 116,541.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,545.80 : 266,280.30 = 77,705.80 : x
  2. Step 2: Convert to fraction form
    177,545.80/266,280.30 = 77,705.80/x
  3. Step 3: Cross multiply
    177,545.80x = 266,280.30 × 77,705.80
  4. Step 4: Simplify right side
    177,545.80x = 20,691,523,735.74
  5. Step 5: Solve for x
    x = 20,691,523,735.74/177,545.80
  6. Step 6: Final answer
    x = 116,541.89

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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.