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Finding the Fourth Proportional to 83,937.59, 115,843.88 and 48,127.49

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Solution

The fourth proportional to 83,937.59, 115,843.88 and 48,127.49 is: 66,421.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,937.59 : 115,843.88 = 48,127.49 : x
  2. Step 2: Convert to fraction form
    83,937.59/115,843.88 = 48,127.49/x
  3. Step 3: Cross multiply
    83,937.59x = 115,843.88 × 48,127.49
  4. Step 4: Simplify right side
    83,937.59x = 5,575,275,176.26
  5. Step 5: Solve for x
    x = 5,575,275,176.26/83,937.59
  6. Step 6: Final answer
    x = 66,421.67

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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.