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Finding the Fourth Proportional to 74,793.84, 103,225.44 and 47,572.48

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Solution

The fourth proportional to 74,793.84, 103,225.44 and 47,572.48 is: 65,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,793.84 : 103,225.44 = 47,572.48 : x
  2. Step 2: Convert to fraction form
    74,793.84/103,225.44 = 47,572.48/x
  3. Step 3: Cross multiply
    74,793.84x = 103,225.44 × 47,572.48
  4. Step 4: Simplify right side
    74,793.84x = 4,910,690,179.89
  5. Step 5: Solve for x
    x = 4,910,690,179.89/74,793.84
  6. Step 6: Final answer
    x = 65,656.35

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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.