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Finding the Fourth Proportional to 174,872.70, 262,309.05 and 155,189.70

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Solution

The fourth proportional to 174,872.70, 262,309.05 and 155,189.70 is: 232,784.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,872.70 : 262,309.05 = 155,189.70 : x
  2. Step 2: Convert to fraction form
    174,872.70/262,309.05 = 155,189.70/x
  3. Step 3: Cross multiply
    174,872.70x = 262,309.05 × 155,189.70
  4. Step 4: Simplify right side
    174,872.70x = 40,707,662,776.79
  5. Step 5: Solve for x
    x = 40,707,662,776.79/174,872.70
  6. Step 6: Final answer
    x = 232,784.55

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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.