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Finding the Fourth Proportional to 174,517.30, 261,813.15 and 99,673.30

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Solution

The fourth proportional to 174,517.30, 261,813.15 and 99,673.30 is: 149,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,517.30 : 261,813.15 = 99,673.30 : x
  2. Step 2: Convert to fraction form
    174,517.30/261,813.15 = 99,673.30/x
  3. Step 3: Cross multiply
    174,517.30x = 261,813.15 × 99,673.30
  4. Step 4: Simplify right side
    174,517.30x = 26,095,780,643.90
  5. Step 5: Solve for x
    x = 26,095,780,643.90/174,517.30
  6. Step 6: Final answer
    x = 149,531.20

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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.