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Finding the Fourth Proportional to 174,874.88, 241,318.80 and 99,421.76

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Solution

The fourth proportional to 174,874.88, 241,318.80 and 99,421.76 is: 137,197.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,874.88 : 241,318.80 = 99,421.76 : x
  2. Step 2: Convert to fraction form
    174,874.88/241,318.80 = 99,421.76/x
  3. Step 3: Cross multiply
    174,874.88x = 241,318.80 × 99,421.76
  4. Step 4: Simplify right side
    174,874.88x = 23,992,339,817.09
  5. Step 5: Solve for x
    x = 23,992,339,817.09/174,874.88
  6. Step 6: Final answer
    x = 137,197.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.