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Finding the Fourth Proportional to 113,016.60, 169,416.90 and 41,920.20

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Solution

The fourth proportional to 113,016.60, 169,416.90 and 41,920.20 is: 62,840.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,016.60 : 169,416.90 = 41,920.20 : x
  2. Step 2: Convert to fraction form
    113,016.60/169,416.90 = 41,920.20/x
  3. Step 3: Cross multiply
    113,016.60x = 169,416.90 × 41,920.20
  4. Step 4: Simplify right side
    113,016.60x = 7,101,990,331.38
  5. Step 5: Solve for x
    x = 7,101,990,331.38/113,016.60
  6. Step 6: Final answer
    x = 62,840.24

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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.