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Finding the Fourth Proportional to 472,246.60, 708,305.10 and 156,670.60

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Solution

The fourth proportional to 472,246.60, 708,305.10 and 156,670.60 is: 234,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,246.60 : 708,305.10 = 156,670.60 : x
  2. Step 2: Convert to fraction form
    472,246.60/708,305.10 = 156,670.60/x
  3. Step 3: Cross multiply
    472,246.60x = 708,305.10 × 156,670.60
  4. Step 4: Simplify right side
    472,246.60x = 110,970,585,000.06
  5. Step 5: Solve for x
    x = 110,970,585,000.06/472,246.60
  6. Step 6: Final answer
    x = 234,984.40

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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.