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Finding the Fourth Proportional to 75,047.92, 112,490.88 and 48,771.52

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Solution

The fourth proportional to 75,047.92, 112,490.88 and 48,771.52 is: 73,104.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,047.92 : 112,490.88 = 48,771.52 : x
  2. Step 2: Convert to fraction form
    75,047.92/112,490.88 = 48,771.52/x
  3. Step 3: Cross multiply
    75,047.92x = 112,490.88 × 48,771.52
  4. Step 4: Simplify right side
    75,047.92x = 5,486,351,203.74
  5. Step 5: Solve for x
    x = 5,486,351,203.74/75,047.92
  6. Step 6: Final answer
    x = 73,104.64

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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.