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Finding the Fourth Proportional to 472,475.80, 708,260.10 and 156,770.20

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Solution

The fourth proportional to 472,475.80, 708,260.10 and 156,770.20 is: 235,004.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,475.80 : 708,260.10 = 156,770.20 : x
  2. Step 2: Convert to fraction form
    472,475.80/708,260.10 = 156,770.20/x
  3. Step 3: Cross multiply
    472,475.80x = 708,260.10 × 156,770.20
  4. Step 4: Simplify right side
    472,475.80x = 111,034,077,529.02
  5. Step 5: Solve for x
    x = 111,034,077,529.02/472,475.80
  6. Step 6: Final answer
    x = 235,004.79

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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.