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Finding the Fourth Proportional to 78,113.46, 107,791.43 and 44,125.43

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Solution

The fourth proportional to 78,113.46, 107,791.43 and 44,125.43 is: 60,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,113.46 : 107,791.43 = 44,125.43 : x
  2. Step 2: Convert to fraction form
    78,113.46/107,791.43 = 44,125.43/x
  3. Step 3: Cross multiply
    78,113.46x = 107,791.43 × 44,125.43
  4. Step 4: Simplify right side
    78,113.46x = 4,756,343,199.06
  5. Step 5: Solve for x
    x = 4,756,343,199.06/78,113.46
  6. Step 6: Final answer
    x = 60,890.19

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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.