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Finding the Fourth Proportional to 477,175.70, 715,744.86 and 161,632.60

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Solution

The fourth proportional to 477,175.70, 715,744.86 and 161,632.60 is: 242,442.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,175.70 : 715,744.86 = 161,632.60 : x
  2. Step 2: Convert to fraction form
    477,175.70/715,744.86 = 161,632.60/x
  3. Step 3: Cross multiply
    477,175.70x = 715,744.86 × 161,632.60
  4. Step 4: Simplify right side
    477,175.70x = 115,687,700,262.95
  5. Step 5: Solve for x
    x = 115,687,700,262.95/477,175.70
  6. Step 6: Final answer
    x = 242,442.56

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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.