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Finding the Fourth Proportional to 174,552.80, 261,656.40 and 85,733.60

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Solution

The fourth proportional to 174,552.80, 261,656.40 and 85,733.60 is: 128,515.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,552.80 : 261,656.40 = 85,733.60 : x
  2. Step 2: Convert to fraction form
    174,552.80/261,656.40 = 85,733.60/x
  3. Step 3: Cross multiply
    174,552.80x = 261,656.40 × 85,733.60
  4. Step 4: Simplify right side
    174,552.80x = 22,432,745,135.04
  5. Step 5: Solve for x
    x = 22,432,745,135.04/174,552.80
  6. Step 6: Final answer
    x = 128,515.53

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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.