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Finding the Fourth Proportional to 472,728.88, 708,939.36 and 157,101.04

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Solution

The fourth proportional to 472,728.88, 708,939.36 and 157,101.04 is: 235,600.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,728.88 : 708,939.36 = 157,101.04 : x
  2. Step 2: Convert to fraction form
    472,728.88/708,939.36 = 157,101.04/x
  3. Step 3: Cross multiply
    472,728.88x = 708,939.36 × 157,101.04
  4. Step 4: Simplify right side
    472,728.88x = 111,375,110,752.93
  5. Step 5: Solve for x
    x = 111,375,110,752.93/472,728.88
  6. Step 6: Final answer
    x = 235,600.39

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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.