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Finding the Fourth Proportional to 254,689.71, 382,034.10 and 67,701.21

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Solution

The fourth proportional to 254,689.71, 382,034.10 and 67,701.21 is: 101,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,689.71 : 382,034.10 = 67,701.21 : x
  2. Step 2: Convert to fraction form
    254,689.71/382,034.10 = 67,701.21/x
  3. Step 3: Cross multiply
    254,689.71x = 382,034.10 × 67,701.21
  4. Step 4: Simplify right side
    254,689.71x = 25,864,170,831.26
  5. Step 5: Solve for x
    x = 25,864,170,831.26/254,689.71
  6. Step 6: Final answer
    x = 101,551.69

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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.