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Finding the Fourth Proportional to 282,480.48, 423,689.40 and 82,803.24

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Solution

The fourth proportional to 282,480.48, 423,689.40 and 82,803.24 is: 124,195.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,480.48 : 423,689.40 = 82,803.24 : x
  2. Step 2: Convert to fraction form
    282,480.48/423,689.40 = 82,803.24/x
  3. Step 3: Cross multiply
    282,480.48x = 423,689.40 × 82,803.24
  4. Step 4: Simplify right side
    282,480.48x = 35,082,855,073.66
  5. Step 5: Solve for x
    x = 35,082,855,073.66/282,480.48
  6. Step 6: Final answer
    x = 124,195.68

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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.