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Finding the Fourth Proportional to 100,840.60, 151,260.90 and 96,247.90

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Solution

The fourth proportional to 100,840.60, 151,260.90 and 96,247.90 is: 144,371.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,840.60 : 151,260.90 = 96,247.90 : x
  2. Step 2: Convert to fraction form
    100,840.60/151,260.90 = 96,247.90/x
  3. Step 3: Cross multiply
    100,840.60x = 151,260.90 × 96,247.90
  4. Step 4: Simplify right side
    100,840.60x = 14,558,543,977.11
  5. Step 5: Solve for x
    x = 14,558,543,977.11/100,840.60
  6. Step 6: Final answer
    x = 144,371.85

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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.