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Finding the Fourth Proportional to 113,497.20, 170,245.80 and 104,967.90

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Solution

The fourth proportional to 113,497.20, 170,245.80 and 104,967.90 is: 157,451.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,497.20 : 170,245.80 = 104,967.90 : x
  2. Step 2: Convert to fraction form
    113,497.20/170,245.80 = 104,967.90/x
  3. Step 3: Cross multiply
    113,497.20x = 170,245.80 × 104,967.90
  4. Step 4: Simplify right side
    113,497.20x = 17,870,344,109.82
  5. Step 5: Solve for x
    x = 17,870,344,109.82/113,497.20
  6. Step 6: Final answer
    x = 157,451.85

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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.