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Finding the Fourth Proportional to 101,997.04, 140,710.65 and 67,972.39

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Solution

The fourth proportional to 101,997.04, 140,710.65 and 67,972.39 is: 93,771.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,997.04 : 140,710.65 = 67,972.39 : x
  2. Step 2: Convert to fraction form
    101,997.04/140,710.65 = 67,972.39/x
  3. Step 3: Cross multiply
    101,997.04x = 140,710.65 × 67,972.39
  4. Step 4: Simplify right side
    101,997.04x = 9,564,439,178.95
  5. Step 5: Solve for x
    x = 9,564,439,178.95/101,997.04
  6. Step 6: Final answer
    x = 93,771.73

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1.5x scale

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.