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Finding the Fourth Proportional to 57,067.48, 85,479.30 and 46,345.51

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Solution

The fourth proportional to 57,067.48, 85,479.30 and 46,345.51 is: 69,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,067.48 : 85,479.30 = 46,345.51 : x
  2. Step 2: Convert to fraction form
    57,067.48/85,479.30 = 46,345.51/x
  3. Step 3: Cross multiply
    57,067.48x = 85,479.30 × 46,345.51
  4. Step 4: Simplify right side
    57,067.48x = 3,961,581,752.94
  5. Step 5: Solve for x
    x = 3,961,581,752.94/57,067.48
  6. Step 6: Final answer
    x = 69,419.25

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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.