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Finding the Fourth Proportional to 134,499.40, 201,732.90 and 55,605.40

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Solution

The fourth proportional to 134,499.40, 201,732.90 and 55,605.40 is: 83,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,499.40 : 201,732.90 = 55,605.40 : x
  2. Step 2: Convert to fraction form
    134,499.40/201,732.90 = 55,605.40/x
  3. Step 3: Cross multiply
    134,499.40x = 201,732.90 × 55,605.40
  4. Step 4: Simplify right side
    134,499.40x = 11,217,438,597.66
  5. Step 5: Solve for x
    x = 11,217,438,597.66/134,499.40
  6. Step 6: Final answer
    x = 83,401.40

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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.