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Finding the Fourth Proportional to 308,434.96, 462,698.52 and 98,079.76

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Solution

The fourth proportional to 308,434.96, 462,698.52 and 98,079.76 is: 147,134.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,434.96 : 462,698.52 = 98,079.76 : x
  2. Step 2: Convert to fraction form
    308,434.96/462,698.52 = 98,079.76/x
  3. Step 3: Cross multiply
    308,434.96x = 462,698.52 × 98,079.76
  4. Step 4: Simplify right side
    308,434.96x = 45,381,359,793.96
  5. Step 5: Solve for x
    x = 45,381,359,793.96/308,434.96
  6. Step 6: Final answer
    x = 147,134.29

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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.