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Finding the Fourth Proportional to 103,713.78, 155,585.67 and 44,548.95

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Solution

The fourth proportional to 103,713.78, 155,585.67 and 44,548.95 is: 66,829.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,713.78 : 155,585.67 = 44,548.95 : x
  2. Step 2: Convert to fraction form
    103,713.78/155,585.67 = 44,548.95/x
  3. Step 3: Cross multiply
    103,713.78x = 155,585.67 × 44,548.95
  4. Step 4: Simplify right side
    103,713.78x = 6,931,178,233.55
  5. Step 5: Solve for x
    x = 6,931,178,233.55/103,713.78
  6. Step 6: Final answer
    x = 66,829.87

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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.