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Finding the Fourth Proportional to 141,011.87, 211,412.60 and 84,838.81

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Solution

The fourth proportional to 141,011.87, 211,412.60 and 84,838.81 is: 127,194.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,011.87 : 211,412.60 = 84,838.81 : x
  2. Step 2: Convert to fraction form
    141,011.87/211,412.60 = 84,838.81/x
  3. Step 3: Cross multiply
    141,011.87x = 211,412.60 × 84,838.81
  4. Step 4: Simplify right side
    141,011.87x = 17,935,993,164.82
  5. Step 5: Solve for x
    x = 17,935,993,164.82/141,011.87
  6. Step 6: Final answer
    x = 127,194.92

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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.