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Finding the Fourth Proportional to 288,793.02, 398,547.03 and 161,468.70

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Solution

The fourth proportional to 288,793.02, 398,547.03 and 161,468.70 is: 222,833.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,793.02 : 398,547.03 = 161,468.70 : x
  2. Step 2: Convert to fraction form
    288,793.02/398,547.03 = 161,468.70/x
  3. Step 3: Cross multiply
    288,793.02x = 398,547.03 × 161,468.70
  4. Step 4: Simplify right side
    288,793.02x = 64,352,870,822.96
  5. Step 5: Solve for x
    x = 64,352,870,822.96/288,793.02
  6. Step 6: Final answer
    x = 222,833.89

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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.