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Finding the Fourth Proportional to 156,321.80, 215,728.10 and 95,925.81

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Solution

The fourth proportional to 156,321.80, 215,728.10 and 95,925.81 is: 132,380.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,321.80 : 215,728.10 = 95,925.81 : x
  2. Step 2: Convert to fraction form
    156,321.80/215,728.10 = 95,925.81/x
  3. Step 3: Cross multiply
    156,321.80x = 215,728.10 × 95,925.81
  4. Step 4: Simplify right side
    156,321.80x = 20,693,892,252.63
  5. Step 5: Solve for x
    x = 20,693,892,252.63/156,321.80
  6. Step 6: Final answer
    x = 132,380.08

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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.