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Finding the Fourth Proportional to 124,326.65, 186,489.81 and 57,730.37

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Solution

The fourth proportional to 124,326.65, 186,489.81 and 57,730.37 is: 86,595.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,326.65 : 186,489.81 = 57,730.37 : x
  2. Step 2: Convert to fraction form
    124,326.65/186,489.81 = 57,730.37/x
  3. Step 3: Cross multiply
    124,326.65x = 186,489.81 × 57,730.37
  4. Step 4: Simplify right side
    124,326.65x = 10,766,124,800.08
  5. Step 5: Solve for x
    x = 10,766,124,800.08/124,326.65
  6. Step 6: Final answer
    x = 86,595.47

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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.