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Finding the Fourth Proportional to 269,597.45, 372,041.91 and 148,739.71

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Solution

The fourth proportional to 269,597.45, 372,041.91 and 148,739.71 is: 205,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,597.45 : 372,041.91 = 148,739.71 : x
  2. Step 2: Convert to fraction form
    269,597.45/372,041.91 = 148,739.71/x
  3. Step 3: Cross multiply
    269,597.45x = 372,041.91 × 148,739.71
  4. Step 4: Simplify right side
    269,597.45x = 55,337,405,801.25
  5. Step 5: Solve for x
    x = 55,337,405,801.25/269,597.45
  6. Step 6: Final answer
    x = 205,259.38

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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.