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Finding the Fourth Proportional to 223,483.25, 335,435.54 and 81,465.79

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Solution

The fourth proportional to 223,483.25, 335,435.54 and 81,465.79 is: 122,275.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,483.25 : 335,435.54 = 81,465.79 : x
  2. Step 2: Convert to fraction form
    223,483.25/335,435.54 = 81,465.79/x
  3. Step 3: Cross multiply
    223,483.25x = 335,435.54 × 81,465.79
  4. Step 4: Simplify right side
    223,483.25x = 27,326,519,175.67
  5. Step 5: Solve for x
    x = 27,326,519,175.67/223,483.25
  6. Step 6: Final answer
    x = 122,275.47

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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.