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Finding the Fourth Proportional to 498,004.80, 747,007.20 and 124,027.80

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Solution

The fourth proportional to 498,004.80, 747,007.20 and 124,027.80 is: 186,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,004.80 : 747,007.20 = 124,027.80 : x
  2. Step 2: Convert to fraction form
    498,004.80/747,007.20 = 124,027.80/x
  3. Step 3: Cross multiply
    498,004.80x = 747,007.20 × 124,027.80
  4. Step 4: Simplify right side
    498,004.80x = 92,649,659,600.16
  5. Step 5: Solve for x
    x = 92,649,659,600.16/498,004.80
  6. Step 6: Final answer
    x = 186,041.70

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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.