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Finding the Fourth Proportional to 202,852.70, 279,915.20 and 112,194.26

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Solution

The fourth proportional to 202,852.70, 279,915.20 and 112,194.26 is: 154,816.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,852.70 : 279,915.20 = 112,194.26 : x
  2. Step 2: Convert to fraction form
    202,852.70/279,915.20 = 112,194.26/x
  3. Step 3: Cross multiply
    202,852.70x = 279,915.20 × 112,194.26
  4. Step 4: Simplify right side
    202,852.70x = 31,404,878,726.75
  5. Step 5: Solve for x
    x = 31,404,878,726.75/202,852.70
  6. Step 6: Final answer
    x = 154,816.17

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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.