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Finding the Fourth Proportional to 175,507.20, 262,492.80 and 156,921.60

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Solution

The fourth proportional to 175,507.20, 262,492.80 and 156,921.60 is: 234,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,507.20 : 262,492.80 = 156,921.60 : x
  2. Step 2: Convert to fraction form
    175,507.20/262,492.80 = 156,921.60/x
  3. Step 3: Cross multiply
    175,507.20x = 262,492.80 × 156,921.60
  4. Step 4: Simplify right side
    175,507.20x = 41,190,790,164.48
  5. Step 5: Solve for x
    x = 41,190,790,164.48/175,507.20
  6. Step 6: Final answer
    x = 234,695.73

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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.