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Finding the Fourth Proportional to 311,301.90, 466,780.05 and 124,101.90

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Solution

The fourth proportional to 311,301.90, 466,780.05 and 124,101.90 is: 186,083.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,301.90 : 466,780.05 = 124,101.90 : x
  2. Step 2: Convert to fraction form
    311,301.90/466,780.05 = 124,101.90/x
  3. Step 3: Cross multiply
    311,301.90x = 466,780.05 × 124,101.90
  4. Step 4: Simplify right side
    311,301.90x = 57,928,291,087.10
  5. Step 5: Solve for x
    x = 57,928,291,087.10/311,301.90
  6. Step 6: Final answer
    x = 186,083.96

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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.