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Finding the Fourth Proportional to 370,116.40, 555,304.20 and 159,905.20

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Solution

The fourth proportional to 370,116.40, 555,304.20 and 159,905.20 is: 239,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,116.40 : 555,304.20 = 159,905.20 : x
  2. Step 2: Convert to fraction form
    370,116.40/555,304.20 = 159,905.20/x
  3. Step 3: Cross multiply
    370,116.40x = 555,304.20 × 159,905.20
  4. Step 4: Simplify right side
    370,116.40x = 88,796,029,161.84
  5. Step 5: Solve for x
    x = 88,796,029,161.84/370,116.40
  6. Step 6: Final answer
    x = 239,913.79

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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.