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Finding the Fourth Proportional to 105,778.67, 158,669.03 and 26,892.90

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Solution

The fourth proportional to 105,778.67, 158,669.03 and 26,892.90 is: 40,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,778.67 : 158,669.03 = 26,892.90 : x
  2. Step 2: Convert to fraction form
    105,778.67/158,669.03 = 26,892.90/x
  3. Step 3: Cross multiply
    105,778.67x = 158,669.03 × 26,892.90
  4. Step 4: Simplify right side
    105,778.67x = 4,267,070,356.89
  5. Step 5: Solve for x
    x = 4,267,070,356.89/105,778.67
  6. Step 6: Final answer
    x = 40,339.61

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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.