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Finding the Fourth Proportional to 101,237.40, 151,856.10 and 68,059.80

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Solution

The fourth proportional to 101,237.40, 151,856.10 and 68,059.80 is: 102,089.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,237.40 : 151,856.10 = 68,059.80 : x
  2. Step 2: Convert to fraction form
    101,237.40/151,856.10 = 68,059.80/x
  3. Step 3: Cross multiply
    101,237.40x = 151,856.10 × 68,059.80
  4. Step 4: Simplify right side
    101,237.40x = 10,335,295,794.78
  5. Step 5: Solve for x
    x = 10,335,295,794.78/101,237.40
  6. Step 6: Final answer
    x = 102,089.70

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1.5x scale

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.