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Finding the Fourth Proportional to 136,058.80, 204,088.20 and 121,025.20

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Solution

The fourth proportional to 136,058.80, 204,088.20 and 121,025.20 is: 181,537.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,058.80 : 204,088.20 = 121,025.20 : x
  2. Step 2: Convert to fraction form
    136,058.80/204,088.20 = 121,025.20/x
  3. Step 3: Cross multiply
    136,058.80x = 204,088.20 × 121,025.20
  4. Step 4: Simplify right side
    136,058.80x = 24,699,815,222.64
  5. Step 5: Solve for x
    x = 24,699,815,222.64/136,058.80
  6. Step 6: Final answer
    x = 181,537.80

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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.