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Finding the Fourth Proportional to 316,861.20, 437,267.16 and 173,630.16

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Solution

The fourth proportional to 316,861.20, 437,267.16 and 173,630.16 is: 239,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,861.20 : 437,267.16 = 173,630.16 : x
  2. Step 2: Convert to fraction form
    316,861.20/437,267.16 = 173,630.16/x
  3. Step 3: Cross multiply
    316,861.20x = 437,267.16 × 173,630.16
  4. Step 4: Simplify right side
    316,861.20x = 75,922,766,953.55
  5. Step 5: Solve for x
    x = 75,922,766,953.55/316,861.20
  6. Step 6: Final answer
    x = 239,608.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.