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Finding the Fourth Proportional to 351,207.56, 526,971.27 and 148,859.12

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Solution

The fourth proportional to 351,207.56, 526,971.27 and 148,859.12 is: 223,356.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,207.56 : 526,971.27 = 148,859.12 : x
  2. Step 2: Convert to fraction form
    351,207.56/526,971.27 = 148,859.12/x
  3. Step 3: Cross multiply
    351,207.56x = 526,971.27 × 148,859.12
  4. Step 4: Simplify right side
    351,207.56x = 78,444,479,517.48
  5. Step 5: Solve for x
    x = 78,444,479,517.48/351,207.56
  6. Step 6: Final answer
    x = 223,356.47

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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.