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Finding the Fourth Proportional to 141,063.71, 211,649.58 and 84,943.92

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Solution

The fourth proportional to 141,063.71, 211,649.58 and 84,943.92 is: 127,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,063.71 : 211,649.58 = 84,943.92 : x
  2. Step 2: Convert to fraction form
    141,063.71/211,649.58 = 84,943.92/x
  3. Step 3: Cross multiply
    141,063.71x = 211,649.58 × 84,943.92
  4. Step 4: Simplify right side
    141,063.71x = 17,978,344,991.55
  5. Step 5: Solve for x
    x = 17,978,344,991.55/141,063.71
  6. Step 6: Final answer
    x = 127,448.41

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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.