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Finding the Fourth Proportional to 269,805.91, 372,332.71 and 148,947.36

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Solution

The fourth proportional to 269,805.91, 372,332.71 and 148,947.36 is: 205,547.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,805.91 : 372,332.71 = 148,947.36 : x
  2. Step 2: Convert to fraction form
    269,805.91/372,332.71 = 148,947.36/x
  3. Step 3: Cross multiply
    269,805.91x = 372,332.71 × 148,947.36
  4. Step 4: Simplify right side
    269,805.91x = 55,457,973,823.78
  5. Step 5: Solve for x
    x = 55,457,973,823.78/269,805.91
  6. Step 6: Final answer
    x = 205,547.66

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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.