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Finding the Fourth Proportional to 370,205.71, 555,308.57 and 89,722.96

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Solution

The fourth proportional to 370,205.71, 555,308.57 and 89,722.96 is: 134,584.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,205.71 : 555,308.57 = 89,722.96 : x
  2. Step 2: Convert to fraction form
    370,205.71/555,308.57 = 89,722.96/x
  3. Step 3: Cross multiply
    370,205.71x = 555,308.57 × 89,722.96
  4. Step 4: Simplify right side
    370,205.71x = 49,823,927,449.80
  5. Step 5: Solve for x
    x = 49,823,927,449.80/370,205.71
  6. Step 6: Final answer
    x = 134,584.44

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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.