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Finding the Fourth Proportional to 239,792.95, 359,689.38 and 71,312.59

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Solution

The fourth proportional to 239,792.95, 359,689.38 and 71,312.59 is: 106,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,792.95 : 359,689.38 = 71,312.59 : x
  2. Step 2: Convert to fraction form
    239,792.95/359,689.38 = 71,312.59/x
  3. Step 3: Cross multiply
    239,792.95x = 359,689.38 × 71,312.59
  4. Step 4: Simplify right side
    239,792.95x = 25,650,381,283.29
  5. Step 5: Solve for x
    x = 25,650,381,283.29/239,792.95
  6. Step 6: Final answer
    x = 106,968.87

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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.