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Finding the Fourth Proportional to 141,073.96, 211,670.31 and 87,810.49

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Solution

The fourth proportional to 141,073.96, 211,670.31 and 87,810.49 is: 131,752.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,073.96 : 211,670.31 = 87,810.49 : x
  2. Step 2: Convert to fraction form
    141,073.96/211,670.31 = 87,810.49/x
  3. Step 3: Cross multiply
    141,073.96x = 211,670.31 × 87,810.49
  4. Step 4: Simplify right side
    141,073.96x = 18,586,873,639.55
  5. Step 5: Solve for x
    x = 18,586,873,639.55/141,073.96
  6. Step 6: Final answer
    x = 131,752.69

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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.