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Finding the Fourth Proportional to 223,801.84, 308,258.20 and 172,019.91

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Solution

The fourth proportional to 223,801.84, 308,258.20 and 172,019.91 is: 236,935.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,801.84 : 308,258.20 = 172,019.91 : x
  2. Step 2: Convert to fraction form
    223,801.84/308,258.20 = 172,019.91/x
  3. Step 3: Cross multiply
    223,801.84x = 308,258.20 × 172,019.91
  4. Step 4: Simplify right side
    223,801.84x = 53,026,546,279.47
  5. Step 5: Solve for x
    x = 53,026,546,279.47/223,801.84
  6. Step 6: Final answer
    x = 236,935.26

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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.