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Finding the Fourth Proportional to 70,983.95, 97,954.31 and 39,152.03

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Solution

The fourth proportional to 70,983.95, 97,954.31 and 39,152.03 is: 54,027.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,983.95 : 97,954.31 = 39,152.03 : x
  2. Step 2: Convert to fraction form
    70,983.95/97,954.31 = 39,152.03/x
  3. Step 3: Cross multiply
    70,983.95x = 97,954.31 × 39,152.03
  4. Step 4: Simplify right side
    70,983.95x = 3,835,109,691.86
  5. Step 5: Solve for x
    x = 3,835,109,691.86/70,983.95
  6. Step 6: Final answer
    x = 54,027.85

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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.