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Finding the Fourth Proportional to 74,997.64, 112,671.42 and 43,854.76

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Solution

The fourth proportional to 74,997.64, 112,671.42 and 43,854.76 is: 65,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,997.64 : 112,671.42 = 43,854.76 : x
  2. Step 2: Convert to fraction form
    74,997.64/112,671.42 = 43,854.76/x
  3. Step 3: Cross multiply
    74,997.64x = 112,671.42 × 43,854.76
  4. Step 4: Simplify right side
    74,997.64x = 4,941,178,082.96
  5. Step 5: Solve for x
    x = 4,941,178,082.96/74,997.64
  6. Step 6: Final answer
    x = 65,884.45

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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.