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Finding the Fourth Proportional to 134,502.80, 201,667.80 and 55,648.40

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Solution

The fourth proportional to 134,502.80, 201,667.80 and 55,648.40 is: 83,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,502.80 : 201,667.80 = 55,648.40 : x
  2. Step 2: Convert to fraction form
    134,502.80/201,667.80 = 55,648.40/x
  3. Step 3: Cross multiply
    134,502.80x = 201,667.80 × 55,648.40
  4. Step 4: Simplify right side
    134,502.80x = 11,222,490,401.52
  5. Step 5: Solve for x
    x = 11,222,490,401.52/134,502.80
  6. Step 6: Final answer
    x = 83,436.85

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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.