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Finding the Fourth Proportional to 95,616.20, 143,424.30 and 91,987.40

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Solution

The fourth proportional to 95,616.20, 143,424.30 and 91,987.40 is: 137,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,616.20 : 143,424.30 = 91,987.40 : x
  2. Step 2: Convert to fraction form
    95,616.20/143,424.30 = 91,987.40/x
  3. Step 3: Cross multiply
    95,616.20x = 143,424.30 × 91,987.40
  4. Step 4: Simplify right side
    95,616.20x = 13,193,228,453.82
  5. Step 5: Solve for x
    x = 13,193,228,453.82/95,616.20
  6. Step 6: Final answer
    x = 137,981.10

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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.