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Finding the Fourth Proportional to 100,867.60, 151,301.40 and 61,501.60

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Solution

The fourth proportional to 100,867.60, 151,301.40 and 61,501.60 is: 92,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,867.60 : 151,301.40 = 61,501.60 : x
  2. Step 2: Convert to fraction form
    100,867.60/151,301.40 = 61,501.60/x
  3. Step 3: Cross multiply
    100,867.60x = 151,301.40 × 61,501.60
  4. Step 4: Simplify right side
    100,867.60x = 9,305,278,182.24
  5. Step 5: Solve for x
    x = 9,305,278,182.24/100,867.60
  6. Step 6: Final answer
    x = 92,252.40

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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.