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Finding the Fourth Proportional to 296,754, 409,521 and 160,787.92

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Solution

The fourth proportional to 296,754, 409,521 and 160,787.92 is: 221,887.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,754 : 409,521 = 160,787.92 : x
  2. Step 2: Convert to fraction form
    296,754/409,521 = 160,787.92/x
  3. Step 3: Cross multiply
    296,754x = 409,521 × 160,787.92
  4. Step 4: Simplify right side
    296,754x = 65,846,029,786.32
  5. Step 5: Solve for x
    x = 65,846,029,786.32/296,754
  6. Step 6: Final answer
    x = 221,887.59

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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.