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Finding the Fourth Proportional to 141,243.90, 211,671.45 and 93,723.90

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Solution

The fourth proportional to 141,243.90, 211,671.45 and 93,723.90 is: 140,456.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,243.90 : 211,671.45 = 93,723.90 : x
  2. Step 2: Convert to fraction form
    141,243.90/211,671.45 = 93,723.90/x
  3. Step 3: Cross multiply
    141,243.90x = 211,671.45 × 93,723.90
  4. Step 4: Simplify right side
    141,243.90x = 19,838,673,812.66
  5. Step 5: Solve for x
    x = 19,838,673,812.66/141,243.90
  6. Step 6: Final answer
    x = 140,456.85

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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.