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Finding the Fourth Proportional to 128,847.80, 193,332.65 and 62,250.54

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Solution

The fourth proportional to 128,847.80, 193,332.65 and 62,250.54 is: 93,405.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,847.80 : 193,332.65 = 62,250.54 : x
  2. Step 2: Convert to fraction form
    128,847.80/193,332.65 = 62,250.54/x
  3. Step 3: Cross multiply
    128,847.80x = 193,332.65 × 62,250.54
  4. Step 4: Simplify right side
    128,847.80x = 12,035,061,550.88
  5. Step 5: Solve for x
    x = 12,035,061,550.88/128,847.80
  6. Step 6: Final answer
    x = 93,405.26

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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.