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Finding the Fourth Proportional to 370,198.64, 555,187.48 and 156,962.96

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Solution

The fourth proportional to 370,198.64, 555,187.48 and 156,962.96 is: 235,397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,198.64 : 555,187.48 = 156,962.96 : x
  2. Step 2: Convert to fraction form
    370,198.64/555,187.48 = 156,962.96/x
  3. Step 3: Cross multiply
    370,198.64x = 555,187.48 × 156,962.96
  4. Step 4: Simplify right side
    370,198.64x = 87,143,867,047.40
  5. Step 5: Solve for x
    x = 87,143,867,047.40/370,198.64
  6. Step 6: Final answer
    x = 235,397.59

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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.