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Finding the Fourth Proportional to 370,314.20, 555,471.30 and 193,167.20

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Solution

The fourth proportional to 370,314.20, 555,471.30 and 193,167.20 is: 289,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,314.20 : 555,471.30 = 193,167.20 : x
  2. Step 2: Convert to fraction form
    370,314.20/555,471.30 = 193,167.20/x
  3. Step 3: Cross multiply
    370,314.20x = 555,471.30 × 193,167.20
  4. Step 4: Simplify right side
    370,314.20x = 107,298,835,701.36
  5. Step 5: Solve for x
    x = 107,298,835,701.36/370,314.20
  6. Step 6: Final answer
    x = 289,750.80

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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.