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Finding the Fourth Proportional to 75,168.76, 103,729.49 and 44,970.74

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Solution

The fourth proportional to 75,168.76, 103,729.49 and 44,970.74 is: 62,057.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,168.76 : 103,729.49 = 44,970.74 : x
  2. Step 2: Convert to fraction form
    75,168.76/103,729.49 = 44,970.74/x
  3. Step 3: Cross multiply
    75,168.76x = 103,729.49 × 44,970.74
  4. Step 4: Simplify right side
    75,168.76x = 4,664,791,925.12
  5. Step 5: Solve for x
    x = 4,664,791,925.12/75,168.76
  6. Step 6: Final answer
    x = 62,057.59

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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.