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Finding the Fourth Proportional to 79,933.54, 119,900.10 and 75,061.80

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Solution

The fourth proportional to 79,933.54, 119,900.10 and 75,061.80 is: 112,592.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,933.54 : 119,900.10 = 75,061.80 : x
  2. Step 2: Convert to fraction form
    79,933.54/119,900.10 = 75,061.80/x
  3. Step 3: Cross multiply
    79,933.54x = 119,900.10 × 75,061.80
  4. Step 4: Simplify right side
    79,933.54x = 8,999,917,326.18
  5. Step 5: Solve for x
    x = 8,999,917,326.18/79,933.54
  6. Step 6: Final answer
    x = 112,592.50

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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.