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Finding the Fourth Proportional to 247,854.66, 371,781.21 and 70,361.79

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Solution

The fourth proportional to 247,854.66, 371,781.21 and 70,361.79 is: 105,542.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,854.66 : 371,781.21 = 70,361.79 : x
  2. Step 2: Convert to fraction form
    247,854.66/371,781.21 = 70,361.79/x
  3. Step 3: Cross multiply
    247,854.66x = 371,781.21 × 70,361.79
  4. Step 4: Simplify right side
    247,854.66x = 26,159,191,423.97
  5. Step 5: Solve for x
    x = 26,159,191,423.97/247,854.66
  6. Step 6: Final answer
    x = 105,542.46

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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.