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Finding the Fourth Proportional to 351,097.31, 526,521.40 and 126,397.41

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Solution

The fourth proportional to 351,097.31, 526,521.40 and 126,397.41 is: 189,551.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,097.31 : 526,521.40 = 126,397.41 : x
  2. Step 2: Convert to fraction form
    351,097.31/526,521.40 = 126,397.41/x
  3. Step 3: Cross multiply
    351,097.31x = 526,521.40 × 126,397.41
  4. Step 4: Simplify right side
    351,097.31x = 66,550,941,008.06
  5. Step 5: Solve for x
    x = 66,550,941,008.06/351,097.31
  6. Step 6: Final answer
    x = 189,551.27

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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.