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Finding the Fourth Proportional to 174,937.80, 261,801.90 and 104,867.40

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Solution

The fourth proportional to 174,937.80, 261,801.90 and 104,867.40 is: 156,938.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,937.80 : 261,801.90 = 104,867.40 : x
  2. Step 2: Convert to fraction form
    174,937.80/261,801.90 = 104,867.40/x
  3. Step 3: Cross multiply
    174,937.80x = 261,801.90 × 104,867.40
  4. Step 4: Simplify right side
    174,937.80x = 27,454,484,568.06
  5. Step 5: Solve for x
    x = 27,454,484,568.06/174,937.80
  6. Step 6: Final answer
    x = 156,938.55

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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.