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Finding the Fourth Proportional to 117,008.80, 175,570.80 and 88,919.20

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Solution

The fourth proportional to 117,008.80, 175,570.80 and 88,919.20 is: 133,422.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,008.80 : 175,570.80 = 88,919.20 : x
  2. Step 2: Convert to fraction form
    117,008.80/175,570.80 = 88,919.20/x
  3. Step 3: Cross multiply
    117,008.80x = 175,570.80 × 88,919.20
  4. Step 4: Simplify right side
    117,008.80x = 15,611,615,079.36
  5. Step 5: Solve for x
    x = 15,611,615,079.36/117,008.80
  6. Step 6: Final answer
    x = 133,422.57

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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.