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Finding the Fourth Proportional to 477,115.25, 715,760.55 and 157,285.94

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Solution

The fourth proportional to 477,115.25, 715,760.55 and 157,285.94 is: 235,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,115.25 : 715,760.55 = 157,285.94 : x
  2. Step 2: Convert to fraction form
    477,115.25/715,760.55 = 157,285.94/x
  3. Step 3: Cross multiply
    477,115.25x = 715,760.55 × 157,285.94
  4. Step 4: Simplify right side
    477,115.25x = 112,579,067,342.86
  5. Step 5: Solve for x
    x = 112,579,067,342.86/477,115.25
  6. Step 6: Final answer
    x = 235,957.81

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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.