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Finding the Fourth Proportional to 174,482.10, 261,723.15 and 85,908.60

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Solution

The fourth proportional to 174,482.10, 261,723.15 and 85,908.60 is: 128,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,482.10 : 261,723.15 = 85,908.60 : x
  2. Step 2: Convert to fraction form
    174,482.10/261,723.15 = 85,908.60/x
  3. Step 3: Cross multiply
    174,482.10x = 261,723.15 × 85,908.60
  4. Step 4: Simplify right side
    174,482.10x = 22,484,269,404.09
  5. Step 5: Solve for x
    x = 22,484,269,404.09/174,482.10
  6. Step 6: Final answer
    x = 128,862.90

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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.