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Finding the Fourth Proportional to 188,950.30, 283,420.65 and 76,600.42

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Solution

The fourth proportional to 188,950.30, 283,420.65 and 76,600.42 is: 114,898.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,950.30 : 283,420.65 = 76,600.42 : x
  2. Step 2: Convert to fraction form
    188,950.30/283,420.65 = 76,600.42/x
  3. Step 3: Cross multiply
    188,950.30x = 283,420.65 × 76,600.42
  4. Step 4: Simplify right side
    188,950.30x = 21,710,140,826.67
  5. Step 5: Solve for x
    x = 21,710,140,826.67/188,950.30
  6. Step 6: Final answer
    x = 114,898.68

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1.5x scale

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.