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Finding the Fourth Proportional to 68,142.06, 101,654.19 and 63,369.54

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Solution

The fourth proportional to 68,142.06, 101,654.19 and 63,369.54 is: 94,534.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,142.06 : 101,654.19 = 63,369.54 : x
  2. Step 2: Convert to fraction form
    68,142.06/101,654.19 = 63,369.54/x
  3. Step 3: Cross multiply
    68,142.06x = 101,654.19 × 63,369.54
  4. Step 4: Simplify right side
    68,142.06x = 6,441,779,259.37
  5. Step 5: Solve for x
    x = 6,441,779,259.37/68,142.06
  6. Step 6: Final answer
    x = 94,534.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.