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Finding the Fourth Proportional to 369,678.47, 554,180.54 and 132,966.77

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Solution

The fourth proportional to 369,678.47, 554,180.54 and 132,966.77 is: 199,328.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,678.47 : 554,180.54 = 132,966.77 : x
  2. Step 2: Convert to fraction form
    369,678.47/554,180.54 = 132,966.77/x
  3. Step 3: Cross multiply
    369,678.47x = 554,180.54 × 132,966.77
  4. Step 4: Simplify right side
    369,678.47x = 73,687,592,964.92
  5. Step 5: Solve for x
    x = 73,687,592,964.92/369,678.47
  6. Step 6: Final answer
    x = 199,328.88

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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.