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Finding the Fourth Proportional to 370,435.28, 555,648.84 and 89,952.80

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Solution

The fourth proportional to 370,435.28, 555,648.84 and 89,952.80 is: 134,928.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,435.28 : 555,648.84 = 89,952.80 : x
  2. Step 2: Convert to fraction form
    370,435.28/555,648.84 = 89,952.80/x
  3. Step 3: Cross multiply
    370,435.28x = 555,648.84 × 89,952.80
  4. Step 4: Simplify right side
    370,435.28x = 49,982,168,974.75
  5. Step 5: Solve for x
    x = 49,982,168,974.75/370,435.28
  6. Step 6: Final answer
    x = 134,928.21

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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.