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Finding the Fourth Proportional to 61,241.40, 91,862.10 and 58,908.60

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Solution

The fourth proportional to 61,241.40, 91,862.10 and 58,908.60 is: 88,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,241.40 : 91,862.10 = 58,908.60 : x
  2. Step 2: Convert to fraction form
    61,241.40/91,862.10 = 58,908.60/x
  3. Step 3: Cross multiply
    61,241.40x = 91,862.10 × 58,908.60
  4. Step 4: Simplify right side
    61,241.40x = 5,411,467,704.06
  5. Step 5: Solve for x
    x = 5,411,467,704.06/61,241.40
  6. Step 6: Final answer
    x = 88,362.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.