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Finding the Fourth Proportional to 185,426.82, 255,855.65 and 103,756.71

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Solution

The fourth proportional to 185,426.82, 255,855.65 and 103,756.71 is: 143,165.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,426.82 : 255,855.65 = 103,756.71 : x
  2. Step 2: Convert to fraction form
    185,426.82/255,855.65 = 103,756.71/x
  3. Step 3: Cross multiply
    185,426.82x = 255,855.65 × 103,756.71
  4. Step 4: Simplify right side
    185,426.82x = 26,546,740,919.59
  5. Step 5: Solve for x
    x = 26,546,740,919.59/185,426.82
  6. Step 6: Final answer
    x = 143,165.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.