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Finding the Fourth Proportional to 323,298.95, 484,948.43 and 98,660.55

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Solution

The fourth proportional to 323,298.95, 484,948.43 and 98,660.55 is: 147,990.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,298.95 : 484,948.43 = 98,660.55 : x
  2. Step 2: Convert to fraction form
    323,298.95/484,948.43 = 98,660.55/x
  3. Step 3: Cross multiply
    323,298.95x = 484,948.43 × 98,660.55
  4. Step 4: Simplify right side
    323,298.95x = 47,845,278,332.13
  5. Step 5: Solve for x
    x = 47,845,278,332.13/323,298.95
  6. Step 6: Final answer
    x = 147,990.83

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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.