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Finding the Fourth Proportional to 282,055.99, 423,078.53 and 68,825.29

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Solution

The fourth proportional to 282,055.99, 423,078.53 and 68,825.29 is: 103,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,055.99 : 423,078.53 = 68,825.29 : x
  2. Step 2: Convert to fraction form
    282,055.99/423,078.53 = 68,825.29/x
  3. Step 3: Cross multiply
    282,055.99x = 423,078.53 × 68,825.29
  4. Step 4: Simplify right side
    282,055.99x = 29,118,502,175.90
  5. Step 5: Solve for x
    x = 29,118,502,175.90/282,055.99
  6. Step 6: Final answer
    x = 103,236.60

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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.