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Finding the Fourth Proportional to 61,006.64, 91,103.97 and 60,346.90

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Solution

The fourth proportional to 61,006.64, 91,103.97 and 60,346.90 is: 90,118.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,006.64 : 91,103.97 = 60,346.90 : x
  2. Step 2: Convert to fraction form
    61,006.64/91,103.97 = 60,346.90/x
  3. Step 3: Cross multiply
    61,006.64x = 91,103.97 × 60,346.90
  4. Step 4: Simplify right side
    61,006.64x = 5,497,841,409.94
  5. Step 5: Solve for x
    x = 5,497,841,409.94/61,006.64
  6. Step 6: Final answer
    x = 90,118.74

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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.