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Finding the Fourth Proportional to 124,855.60, 187,400.85 and 65,733.70

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Solution

The fourth proportional to 124,855.60, 187,400.85 and 65,733.70 is: 98,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,855.60 : 187,400.85 = 65,733.70 : x
  2. Step 2: Convert to fraction form
    124,855.60/187,400.85 = 65,733.70/x
  3. Step 3: Cross multiply
    124,855.60x = 187,400.85 × 65,733.70
  4. Step 4: Simplify right side
    124,855.60x = 12,318,551,253.65
  5. Step 5: Solve for x
    x = 12,318,551,253.65/124,855.60
  6. Step 6: Final answer
    x = 98,662.38

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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.