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Finding the Fourth Proportional to 169,897.40, 234,438 and 93,403.88

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Solution

The fourth proportional to 169,897.40, 234,438 and 93,403.88 is: 128,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,897.40 : 234,438 = 93,403.88 : x
  2. Step 2: Convert to fraction form
    169,897.40/234,438 = 93,403.88/x
  3. Step 3: Cross multiply
    169,897.40x = 234,438 × 93,403.88
  4. Step 4: Simplify right side
    169,897.40x = 21,897,418,819.44
  5. Step 5: Solve for x
    x = 21,897,418,819.44/169,897.40
  6. Step 6: Final answer
    x = 128,886.13

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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.