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Finding the Fourth Proportional to 61,103.51, 84,326.15 and 34,254.65

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Solution

The fourth proportional to 61,103.51, 84,326.15 and 34,254.65 is: 47,273.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,103.51 : 84,326.15 = 34,254.65 : x
  2. Step 2: Convert to fraction form
    61,103.51/84,326.15 = 34,254.65/x
  3. Step 3: Cross multiply
    61,103.51x = 84,326.15 × 34,254.65
  4. Step 4: Simplify right side
    61,103.51x = 2,888,562,161.19
  5. Step 5: Solve for x
    x = 2,888,562,161.19/61,103.51
  6. Step 6: Final answer
    x = 47,273.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.