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Finding the Fourth Proportional to 76,009.20, 114,046.20 and 47,950.80

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Solution

The fourth proportional to 76,009.20, 114,046.20 and 47,950.80 is: 71,946.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,009.20 : 114,046.20 = 47,950.80 : x
  2. Step 2: Convert to fraction form
    76,009.20/114,046.20 = 47,950.80/x
  3. Step 3: Cross multiply
    76,009.20x = 114,046.20 × 47,950.80
  4. Step 4: Simplify right side
    76,009.20x = 5,468,606,526.96
  5. Step 5: Solve for x
    x = 5,468,606,526.96/76,009.20
  6. Step 6: Final answer
    x = 71,946.64

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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.