Home / 282,442.90-423,722.66-82,769.80

Finding the Fourth Proportional to 282,442.90, 423,722.66 and 82,769.80

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Solution

The fourth proportional to 282,442.90, 423,722.66 and 82,769.80 is: 124,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,442.90 : 423,722.66 = 82,769.80 : x
  2. Step 2: Convert to fraction form
    282,442.90/423,722.66 = 82,769.80/x
  3. Step 3: Cross multiply
    282,442.90x = 423,722.66 × 82,769.80
  4. Step 4: Simplify right side
    282,442.90x = 35,071,439,823.67
  5. Step 5: Solve for x
    x = 35,071,439,823.67/282,442.90
  6. Step 6: Final answer
    x = 124,171.79

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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.