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Finding the Fourth Proportional to 269,805.85, 372,332.62 and 148,947.30

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Solution

The fourth proportional to 269,805.85, 372,332.62 and 148,947.30 is: 205,547.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,805.85 : 372,332.62 = 148,947.30 : x
  2. Step 2: Convert to fraction form
    269,805.85/372,332.62 = 148,947.30/x
  3. Step 3: Cross multiply
    269,805.85x = 372,332.62 × 148,947.30
  4. Step 4: Simplify right side
    269,805.85x = 55,457,938,450.93
  5. Step 5: Solve for x
    x = 55,457,938,450.93/269,805.85
  6. Step 6: Final answer
    x = 205,547.58

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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.