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Finding the Fourth Proportional to 141,039.88, 211,632.56 and 93,687.68

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Solution

The fourth proportional to 141,039.88, 211,632.56 and 93,687.68 is: 140,579.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,039.88 : 211,632.56 = 93,687.68 : x
  2. Step 2: Convert to fraction form
    141,039.88/211,632.56 = 93,687.68/x
  3. Step 3: Cross multiply
    141,039.88x = 211,632.56 × 93,687.68
  4. Step 4: Simplify right side
    141,039.88x = 19,827,364,322.16
  5. Step 5: Solve for x
    x = 19,827,364,322.16/141,039.88
  6. Step 6: Final answer
    x = 140,579.85

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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.