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Finding the Fourth Proportional to 354,148.72, 531,534.72 and 185,789.35

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Solution

The fourth proportional to 354,148.72, 531,534.72 and 185,789.35 is: 278,847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,148.72 : 531,534.72 = 185,789.35 : x
  2. Step 2: Convert to fraction form
    354,148.72/531,534.72 = 185,789.35/x
  3. Step 3: Cross multiply
    354,148.72x = 531,534.72 × 185,789.35
  4. Step 4: Simplify right side
    354,148.72x = 98,753,490,131.23
  5. Step 5: Solve for x
    x = 98,753,490,131.23/354,148.72
  6. Step 6: Final answer
    x = 278,847.51

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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.