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Finding the Fourth Proportional to 174,408.80, 261,613.20 and 121,264.70

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Solution

The fourth proportional to 174,408.80, 261,613.20 and 121,264.70 is: 181,897.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,408.80 : 261,613.20 = 121,264.70 : x
  2. Step 2: Convert to fraction form
    174,408.80/261,613.20 = 121,264.70/x
  3. Step 3: Cross multiply
    174,408.80x = 261,613.20 × 121,264.70
  4. Step 4: Simplify right side
    174,408.80x = 31,724,446,214.04
  5. Step 5: Solve for x
    x = 31,724,446,214.04/174,408.80
  6. Step 6: Final answer
    x = 181,897.05

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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.