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Finding the Fourth Proportional to 370,672.42, 555,610.64 and 157,260.21

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Solution

The fourth proportional to 370,672.42, 555,610.64 and 157,260.21 is: 235,721.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,672.42 : 555,610.64 = 157,260.21 : x
  2. Step 2: Convert to fraction form
    370,672.42/555,610.64 = 157,260.21/x
  3. Step 3: Cross multiply
    370,672.42x = 555,610.64 × 157,260.21
  4. Step 4: Simplify right side
    370,672.42x = 87,375,445,138.33
  5. Step 5: Solve for x
    x = 87,375,445,138.33/370,672.42
  6. Step 6: Final answer
    x = 235,721.46

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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.