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Finding the Fourth Proportional to 230,717.32, 346,073.80 and 72,945.76

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Solution

The fourth proportional to 230,717.32, 346,073.80 and 72,945.76 is: 109,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,717.32 : 346,073.80 = 72,945.76 : x
  2. Step 2: Convert to fraction form
    230,717.32/346,073.80 = 72,945.76/x
  3. Step 3: Cross multiply
    230,717.32x = 346,073.80 × 72,945.76
  4. Step 4: Simplify right side
    230,717.32x = 25,244,616,357.09
  5. Step 5: Solve for x
    x = 25,244,616,357.09/230,717.32
  6. Step 6: Final answer
    x = 109,417.95

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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.