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Finding the Fourth Proportional to 230,695.30, 345,919.56 and 118,329.58

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Solution

The fourth proportional to 230,695.30, 345,919.56 and 118,329.58 is: 177,431.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,695.30 : 345,919.56 = 118,329.58 : x
  2. Step 2: Convert to fraction form
    230,695.30/345,919.56 = 118,329.58/x
  3. Step 3: Cross multiply
    230,695.30x = 345,919.56 × 118,329.58
  4. Step 4: Simplify right side
    230,695.30x = 40,932,516,248.58
  5. Step 5: Solve for x
    x = 40,932,516,248.58/230,695.30
  6. Step 6: Final answer
    x = 177,431.08

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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.