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Finding the Fourth Proportional to 160,372, 221,058.39 and 126,326.58

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Solution

The fourth proportional to 160,372, 221,058.39 and 126,326.58 is: 174,129.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,372 : 221,058.39 = 126,326.58 : x
  2. Step 2: Convert to fraction form
    160,372/221,058.39 = 126,326.58/x
  3. Step 3: Cross multiply
    160,372x = 221,058.39 × 126,326.58
  4. Step 4: Simplify right side
    160,372x = 27,925,550,389.01
  5. Step 5: Solve for x
    x = 27,925,550,389.01/160,372
  6. Step 6: Final answer
    x = 174,129.84

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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.