Home / 312,700.04-469,043.57-76,043.96

Finding the Fourth Proportional to 312,700.04, 469,043.57 and 76,043.96

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Solution

The fourth proportional to 312,700.04, 469,043.57 and 76,043.96 is: 114,064.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,700.04 : 469,043.57 = 76,043.96 : x
  2. Step 2: Convert to fraction form
    312,700.04/469,043.57 = 76,043.96/x
  3. Step 3: Cross multiply
    312,700.04x = 469,043.57 × 76,043.96
  4. Step 4: Simplify right side
    312,700.04x = 35,667,928,320.23
  5. Step 5: Solve for x
    x = 35,667,928,320.23/312,700.04
  6. Step 6: Final answer
    x = 114,064.36

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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.