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Finding the Fourth Proportional to 472,462.30, 708,693.45 and 156,919.22

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Solution

The fourth proportional to 472,462.30, 708,693.45 and 156,919.22 is: 235,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,462.30 : 708,693.45 = 156,919.22 : x
  2. Step 2: Convert to fraction form
    472,462.30/708,693.45 = 156,919.22/x
  3. Step 3: Cross multiply
    472,462.30x = 708,693.45 × 156,919.22
  4. Step 4: Simplify right side
    472,462.30x = 111,207,623,393.11
  5. Step 5: Solve for x
    x = 111,207,623,393.11/472,462.30
  6. Step 6: Final answer
    x = 235,378.83

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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.