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Finding the Fourth Proportional to 101,856.70, 140,560.13 and 56,532.02

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Solution

The fourth proportional to 101,856.70, 140,560.13 and 56,532.02 is: 78,013.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,856.70 : 140,560.13 = 56,532.02 : x
  2. Step 2: Convert to fraction form
    101,856.70/140,560.13 = 56,532.02/x
  3. Step 3: Cross multiply
    101,856.70x = 140,560.13 × 56,532.02
  4. Step 4: Simplify right side
    101,856.70x = 7,946,147,797.70
  5. Step 5: Solve for x
    x = 7,946,147,797.70/101,856.70
  6. Step 6: Final answer
    x = 78,013.01

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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.