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Finding the Fourth Proportional to 62,858.70, 86,743.71 and 34,178.93

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Solution

The fourth proportional to 62,858.70, 86,743.71 and 34,178.93 is: 47,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,858.70 : 86,743.71 = 34,178.93 : x
  2. Step 2: Convert to fraction form
    62,858.70/86,743.71 = 34,178.93/x
  3. Step 3: Cross multiply
    62,858.70x = 86,743.71 × 34,178.93
  4. Step 4: Simplify right side
    62,858.70x = 2,964,807,083.60
  5. Step 5: Solve for x
    x = 2,964,807,083.60/62,858.70
  6. Step 6: Final answer
    x = 47,166.22

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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.