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Finding the Fourth Proportional to 269,332.40, 371,681.30 and 148,478.40

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Solution

The fourth proportional to 269,332.40, 371,681.30 and 148,478.40 is: 204,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,332.40 : 371,681.30 = 148,478.40 : x
  2. Step 2: Convert to fraction form
    269,332.40/371,681.30 = 148,478.40/x
  3. Step 3: Cross multiply
    269,332.40x = 371,681.30 × 148,478.40
  4. Step 4: Simplify right side
    269,332.40x = 55,186,644,733.92
  5. Step 5: Solve for x
    x = 55,186,644,733.92/269,332.40
  6. Step 6: Final answer
    x = 204,901.62

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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.