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Finding the Fourth Proportional to 117,716.80, 176,575.20 and 75,726.40

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Solution

The fourth proportional to 117,716.80, 176,575.20 and 75,726.40 is: 113,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,716.80 : 176,575.20 = 75,726.40 : x
  2. Step 2: Convert to fraction form
    117,716.80/176,575.20 = 75,726.40/x
  3. Step 3: Cross multiply
    117,716.80x = 176,575.20 × 75,726.40
  4. Step 4: Simplify right side
    117,716.80x = 13,371,404,225.28
  5. Step 5: Solve for x
    x = 13,371,404,225.28/117,716.80
  6. Step 6: Final answer
    x = 113,589.60

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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.