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Finding the Fourth Proportional to 216,744.39, 299,167.43 and 126,117.92

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Solution

The fourth proportional to 216,744.39, 299,167.43 and 126,117.92 is: 174,077.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,744.39 : 299,167.43 = 126,117.92 : x
  2. Step 2: Convert to fraction form
    216,744.39/299,167.43 = 126,117.92/x
  3. Step 3: Cross multiply
    216,744.39x = 299,167.43 × 126,117.92
  4. Step 4: Simplify right side
    216,744.39x = 37,730,374,120.67
  5. Step 5: Solve for x
    x = 37,730,374,120.67/216,744.39
  6. Step 6: Final answer
    x = 174,077.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.