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Finding the Fourth Proportional to 472,248.60, 708,308.10 and 156,672.60

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Solution

The fourth proportional to 472,248.60, 708,308.10 and 156,672.60 is: 234,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,248.60 : 708,308.10 = 156,672.60 : x
  2. Step 2: Convert to fraction form
    472,248.60/708,308.10 = 156,672.60/x
  3. Step 3: Cross multiply
    472,248.60x = 708,308.10 × 156,672.60
  4. Step 4: Simplify right side
    472,248.60x = 110,972,471,628.06
  5. Step 5: Solve for x
    x = 110,972,471,628.06/472,248.60
  6. Step 6: Final answer
    x = 234,987.40

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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.