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Finding the Fourth Proportional to 177,866.82, 245,545.83 and 137,489.40

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Solution

The fourth proportional to 177,866.82, 245,545.83 and 137,489.40 is: 189,804.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,866.82 : 245,545.83 = 137,489.40 : x
  2. Step 2: Convert to fraction form
    177,866.82/245,545.83 = 137,489.40/x
  3. Step 3: Cross multiply
    177,866.82x = 245,545.83 × 137,489.40
  4. Step 4: Simplify right side
    177,866.82x = 33,759,948,839.20
  5. Step 5: Solve for x
    x = 33,759,948,839.20/177,866.82
  6. Step 6: Final answer
    x = 189,804.65

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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.