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Finding the Fourth Proportional to 581,749.28, 872,643 and 160,989.92

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Solution

The fourth proportional to 581,749.28, 872,643 and 160,989.92 is: 241,490.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,749.28 : 872,643 = 160,989.92 : x
  2. Step 2: Convert to fraction form
    581,749.28/872,643 = 160,989.92/x
  3. Step 3: Cross multiply
    581,749.28x = 872,643 × 160,989.92
  4. Step 4: Simplify right side
    581,749.28x = 140,486,726,758.56
  5. Step 5: Solve for x
    x = 140,486,726,758.56/581,749.28
  6. Step 6: Final answer
    x = 241,490.16

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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.