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Finding the Fourth Proportional to 103,235.48, 142,474.38 and 62,951.48

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Solution

The fourth proportional to 103,235.48, 142,474.38 and 62,951.48 is: 86,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,235.48 : 142,474.38 = 62,951.48 : x
  2. Step 2: Convert to fraction form
    103,235.48/142,474.38 = 62,951.48/x
  3. Step 3: Cross multiply
    103,235.48x = 142,474.38 × 62,951.48
  4. Step 4: Simplify right side
    103,235.48x = 8,968,973,083.08
  5. Step 5: Solve for x
    x = 8,968,973,083.08/103,235.48
  6. Step 6: Final answer
    x = 86,878.79

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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.