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Finding the Fourth Proportional to 306,532.68, 423,073.46 and 191,864.76

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Solution

The fourth proportional to 306,532.68, 423,073.46 and 191,864.76 is: 264,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,532.68 : 423,073.46 = 191,864.76 : x
  2. Step 2: Convert to fraction form
    306,532.68/423,073.46 = 191,864.76/x
  3. Step 3: Cross multiply
    306,532.68x = 423,073.46 × 191,864.76
  4. Step 4: Simplify right side
    306,532.68x = 81,172,887,865.27
  5. Step 5: Solve for x
    x = 81,172,887,865.27/306,532.68
  6. Step 6: Final answer
    x = 264,809.90

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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.