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Finding the Fourth Proportional to 61,967.14, 85,507.71 and 35,103.90

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Solution

The fourth proportional to 61,967.14, 85,507.71 and 35,103.90 is: 48,439.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,967.14 : 85,507.71 = 35,103.90 : x
  2. Step 2: Convert to fraction form
    61,967.14/85,507.71 = 35,103.90/x
  3. Step 3: Cross multiply
    61,967.14x = 85,507.71 × 35,103.90
  4. Step 4: Simplify right side
    61,967.14x = 3,001,654,101.07
  5. Step 5: Solve for x
    x = 3,001,654,101.07/61,967.14
  6. Step 6: Final answer
    x = 48,439.45

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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.