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Finding the Fourth Proportional to 174,628.65, 261,723.80 and 74,671.27

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Solution

The fourth proportional to 174,628.65, 261,723.80 and 74,671.27 is: 111,913.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,628.65 : 261,723.80 = 74,671.27 : x
  2. Step 2: Convert to fraction form
    174,628.65/261,723.80 = 74,671.27/x
  3. Step 3: Cross multiply
    174,628.65x = 261,723.80 × 74,671.27
  4. Step 4: Simplify right side
    174,628.65x = 19,543,248,161.87
  5. Step 5: Solve for x
    x = 19,543,248,161.87/174,628.65
  6. Step 6: Final answer
    x = 111,913.19

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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.