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Finding the Fourth Proportional to 294,088, 441,132 and 72,472

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Solution

The fourth proportional to 294,088, 441,132 and 72,472 is: 108,708

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,088 : 441,132 = 72,472 : x
  2. Step 2: Convert to fraction form
    294,088/441,132 = 72,472/x
  3. Step 3: Cross multiply
    294,088x = 441,132 × 72,472
  4. Step 4: Simplify right side
    294,088x = 31,969,718,304
  5. Step 5: Solve for x
    x = 31,969,718,304/294,088
  6. Step 6: Final answer
    x = 108,708

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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.