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Finding the Fourth Proportional to 239,637.30, 359,506.98 and 71,158.11

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Solution

The fourth proportional to 239,637.30, 359,506.98 and 71,158.11 is: 106,752.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,637.30 : 359,506.98 = 71,158.11 : x
  2. Step 2: Convert to fraction form
    239,637.30/359,506.98 = 71,158.11/x
  3. Step 3: Cross multiply
    239,637.30x = 359,506.98 × 71,158.11
  4. Step 4: Simplify right side
    239,637.30x = 25,581,837,228.61
  5. Step 5: Solve for x
    x = 25,581,837,228.61/239,637.30
  6. Step 6: Final answer
    x = 106,752.32

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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.