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Finding the Fourth Proportional to 124,228, 171,433.92 and 70,523.20

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Solution

The fourth proportional to 124,228, 171,433.92 and 70,523.20 is: 97,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,228 : 171,433.92 = 70,523.20 : x
  2. Step 2: Convert to fraction form
    124,228/171,433.92 = 70,523.20/x
  3. Step 3: Cross multiply
    124,228x = 171,433.92 × 70,523.20
  4. Step 4: Simplify right side
    124,228x = 12,090,068,626.94
  5. Step 5: Solve for x
    x = 12,090,068,626.94/124,228
  6. Step 6: Final answer
    x = 97,321.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.