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Finding the Fourth Proportional to 74,750.76, 112,050.54 and 48,472.20

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Solution

The fourth proportional to 74,750.76, 112,050.54 and 48,472.20 is: 72,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,750.76 : 112,050.54 = 48,472.20 : x
  2. Step 2: Convert to fraction form
    74,750.76/112,050.54 = 48,472.20/x
  3. Step 3: Cross multiply
    74,750.76x = 112,050.54 × 48,472.20
  4. Step 4: Simplify right side
    74,750.76x = 5,431,336,184.99
  5. Step 5: Solve for x
    x = 5,431,336,184.99/74,750.76
  6. Step 6: Final answer
    x = 72,659.28

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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.