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Finding the Fourth Proportional to 308,332.92, 462,218.70 and 118,672.20

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Solution

The fourth proportional to 308,332.92, 462,218.70 and 118,672.20 is: 177,900.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,332.92 : 462,218.70 = 118,672.20 : x
  2. Step 2: Convert to fraction form
    308,332.92/462,218.70 = 118,672.20/x
  3. Step 3: Cross multiply
    308,332.92x = 462,218.70 × 118,672.20
  4. Step 4: Simplify right side
    308,332.92x = 54,852,510,010.14
  5. Step 5: Solve for x
    x = 54,852,510,010.14/308,332.92
  6. Step 6: Final answer
    x = 177,900.27

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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.