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Finding the Fourth Proportional to 338,470.48, 507,739.43 and 125,295.42

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Solution

The fourth proportional to 338,470.48, 507,739.43 and 125,295.42 is: 187,955.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,470.48 : 507,739.43 = 125,295.42 : x
  2. Step 2: Convert to fraction form
    338,470.48/507,739.43 = 125,295.42/x
  3. Step 3: Cross multiply
    338,470.48x = 507,739.43 × 125,295.42
  4. Step 4: Simplify right side
    338,470.48x = 63,617,425,132.41
  5. Step 5: Solve for x
    x = 63,617,425,132.41/338,470.48
  6. Step 6: Final answer
    x = 187,955.61

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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.