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Finding the Fourth Proportional to 519,875.80, 779,813.70 and 125,891.80

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Solution

The fourth proportional to 519,875.80, 779,813.70 and 125,891.80 is: 188,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,875.80 : 779,813.70 = 125,891.80 : x
  2. Step 2: Convert to fraction form
    519,875.80/779,813.70 = 125,891.80/x
  3. Step 3: Cross multiply
    519,875.80x = 779,813.70 × 125,891.80
  4. Step 4: Simplify right side
    519,875.80x = 98,172,150,357.66
  5. Step 5: Solve for x
    x = 98,172,150,357.66/519,875.80
  6. Step 6: Final answer
    x = 188,837.70

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Similar ratio
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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.