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Finding the Fourth Proportional to 176,618.40, 264,538.80 and 156,919.20

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Solution

The fourth proportional to 176,618.40, 264,538.80 and 156,919.20 is: 235,033.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,618.40 : 264,538.80 = 156,919.20 : x
  2. Step 2: Convert to fraction form
    176,618.40/264,538.80 = 156,919.20/x
  3. Step 3: Cross multiply
    176,618.40x = 264,538.80 × 156,919.20
  4. Step 4: Simplify right side
    176,618.40x = 41,511,216,864.96
  5. Step 5: Solve for x
    x = 41,511,216,864.96/176,618.40
  6. Step 6: Final answer
    x = 235,033.36

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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.