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Finding the Fourth Proportional to 76,111.80, 114,167.70 and 41,119.80

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Solution

The fourth proportional to 76,111.80, 114,167.70 and 41,119.80 is: 61,679.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,111.80 : 114,167.70 = 41,119.80 : x
  2. Step 2: Convert to fraction form
    76,111.80/114,167.70 = 41,119.80/x
  3. Step 3: Cross multiply
    76,111.80x = 114,167.70 × 41,119.80
  4. Step 4: Simplify right side
    76,111.80x = 4,694,552,990.46
  5. Step 5: Solve for x
    x = 4,694,552,990.46/76,111.80
  6. Step 6: Final answer
    x = 61,679.70

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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.