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Finding the Fourth Proportional to 370,429.68, 555,644.52 and 89,945.04

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Solution

The fourth proportional to 370,429.68, 555,644.52 and 89,945.04 is: 134,917.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,429.68 : 555,644.52 = 89,945.04 : x
  2. Step 2: Convert to fraction form
    370,429.68/555,644.52 = 89,945.04/x
  3. Step 3: Cross multiply
    370,429.68x = 555,644.52 × 89,945.04
  4. Step 4: Simplify right side
    370,429.68x = 49,977,468,577.18
  5. Step 5: Solve for x
    x = 49,977,468,577.18/370,429.68
  6. Step 6: Final answer
    x = 134,917.56

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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.