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Finding the Fourth Proportional to 117,028.80, 175,312.80 and 108,734.40

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Solution

The fourth proportional to 117,028.80, 175,312.80 and 108,734.40 is: 162,887.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,028.80 : 175,312.80 = 108,734.40 : x
  2. Step 2: Convert to fraction form
    117,028.80/175,312.80 = 108,734.40/x
  3. Step 3: Cross multiply
    117,028.80x = 175,312.80 × 108,734.40
  4. Step 4: Simplify right side
    117,028.80x = 19,062,532,120.32
  5. Step 5: Solve for x
    x = 19,062,532,120.32/117,028.80
  6. Step 6: Final answer
    x = 162,887.53

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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.