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Finding the Fourth Proportional to 253,223.52, 379,877.52 and 112,976.88

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Solution

The fourth proportional to 253,223.52, 379,877.52 and 112,976.88 is: 169,484.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,223.52 : 379,877.52 = 112,976.88 : x
  2. Step 2: Convert to fraction form
    253,223.52/379,877.52 = 112,976.88/x
  3. Step 3: Cross multiply
    253,223.52x = 379,877.52 × 112,976.88
  4. Step 4: Simplify right side
    253,223.52x = 42,917,376,991.74
  5. Step 5: Solve for x
    x = 42,917,376,991.74/253,223.52
  6. Step 6: Final answer
    x = 169,484.17

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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.