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Finding the Fourth Proportional to 174,934.80, 262,099.80 and 81,248.40

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Solution

The fourth proportional to 174,934.80, 262,099.80 and 81,248.40 is: 121,732.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,934.80 : 262,099.80 = 81,248.40 : x
  2. Step 2: Convert to fraction form
    174,934.80/262,099.80 = 81,248.40/x
  3. Step 3: Cross multiply
    174,934.80x = 262,099.80 × 81,248.40
  4. Step 4: Simplify right side
    174,934.80x = 21,295,189,390.32
  5. Step 5: Solve for x
    x = 21,295,189,390.32/174,934.80
  6. Step 6: Final answer
    x = 121,732.15

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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.