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Finding the Fourth Proportional to 86,275.63, 129,384.51 and 41,874.04

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Solution

The fourth proportional to 86,275.63, 129,384.51 and 41,874.04 is: 62,797.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,275.63 : 129,384.51 = 41,874.04 : x
  2. Step 2: Convert to fraction form
    86,275.63/129,384.51 = 41,874.04/x
  3. Step 3: Cross multiply
    86,275.63x = 129,384.51 × 41,874.04
  4. Step 4: Simplify right side
    86,275.63x = 5,417,852,147.12
  5. Step 5: Solve for x
    x = 5,417,852,147.12/86,275.63
  6. Step 6: Final answer
    x = 62,797.02

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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.