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Finding the Fourth Proportional to 83,149.88, 114,746.90 and 45,424.13

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Solution

The fourth proportional to 83,149.88, 114,746.90 and 45,424.13 is: 62,685.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,149.88 : 114,746.90 = 45,424.13 : x
  2. Step 2: Convert to fraction form
    83,149.88/114,746.90 = 45,424.13/x
  3. Step 3: Cross multiply
    83,149.88x = 114,746.90 × 45,424.13
  4. Step 4: Simplify right side
    83,149.88x = 5,212,277,301.84
  5. Step 5: Solve for x
    x = 5,212,277,301.84/83,149.88
  6. Step 6: Final answer
    x = 62,685.33

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1.5x scale

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.