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Finding the Fourth Proportional to 105,766.80, 158,592.60 and 43,366.80

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Solution

The fourth proportional to 105,766.80, 158,592.60 and 43,366.80 is: 65,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,766.80 : 158,592.60 = 43,366.80 : x
  2. Step 2: Convert to fraction form
    105,766.80/158,592.60 = 43,366.80/x
  3. Step 3: Cross multiply
    105,766.80x = 158,592.60 × 43,366.80
  4. Step 4: Simplify right side
    105,766.80x = 6,877,653,565.68
  5. Step 5: Solve for x
    x = 6,877,653,565.68/105,766.80
  6. Step 6: Final answer
    x = 65,026.58

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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.