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Finding the Fourth Proportional to 83,376.40, 125,064.60 and 41,808.40

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Solution

The fourth proportional to 83,376.40, 125,064.60 and 41,808.40 is: 62,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,376.40 : 125,064.60 = 41,808.40 : x
  2. Step 2: Convert to fraction form
    83,376.40/125,064.60 = 41,808.40/x
  3. Step 3: Cross multiply
    83,376.40x = 125,064.60 × 41,808.40
  4. Step 4: Simplify right side
    83,376.40x = 5,228,750,822.64
  5. Step 5: Solve for x
    x = 5,228,750,822.64/83,376.40
  6. Step 6: Final answer
    x = 62,712.60

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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.