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Finding the Fourth Proportional to 230,833.32, 346,288.28 and 81,034.76

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Solution

The fourth proportional to 230,833.32, 346,288.28 and 81,034.76 is: 121,565.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,833.32 : 346,288.28 = 81,034.76 : x
  2. Step 2: Convert to fraction form
    230,833.32/346,288.28 = 81,034.76/x
  3. Step 3: Cross multiply
    230,833.32x = 346,288.28 × 81,034.76
  4. Step 4: Simplify right side
    230,833.32x = 28,061,387,660.61
  5. Step 5: Solve for x
    x = 28,061,387,660.61/230,833.32
  6. Step 6: Final answer
    x = 121,565.59

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1.5x scale

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.