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Finding the Fourth Proportional to 100,858.10, 151,287.15 and 96,019.70

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Solution

The fourth proportional to 100,858.10, 151,287.15 and 96,019.70 is: 144,029.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,858.10 : 151,287.15 = 96,019.70 : x
  2. Step 2: Convert to fraction form
    100,858.10/151,287.15 = 96,019.70/x
  3. Step 3: Cross multiply
    100,858.10x = 151,287.15 × 96,019.70
  4. Step 4: Simplify right side
    100,858.10x = 14,526,546,756.86
  5. Step 5: Solve for x
    x = 14,526,546,756.86/100,858.10
  6. Step 6: Final answer
    x = 144,029.55

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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.