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Finding the Fourth Proportional to 113,297.60, 169,785.48 and 83,480.96

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Solution

The fourth proportional to 113,297.60, 169,785.48 and 83,480.96 is: 125,102.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,297.60 : 169,785.48 = 83,480.96 : x
  2. Step 2: Convert to fraction form
    113,297.60/169,785.48 = 83,480.96/x
  3. Step 3: Cross multiply
    113,297.60x = 169,785.48 × 83,480.96
  4. Step 4: Simplify right side
    113,297.60x = 14,173,854,864.46
  5. Step 5: Solve for x
    x = 14,173,854,864.46/113,297.60
  6. Step 6: Final answer
    x = 125,102.87

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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.