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Finding the Fourth Proportional to 61,041.86, 91,564.00 and 40,115.30

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Solution

The fourth proportional to 61,041.86, 91,564.00 and 40,115.30 is: 60,173.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,041.86 : 91,564.00 = 40,115.30 : x
  2. Step 2: Convert to fraction form
    61,041.86/91,564.00 = 40,115.30/x
  3. Step 3: Cross multiply
    61,041.86x = 91,564.00 × 40,115.30
  4. Step 4: Simplify right side
    61,041.86x = 3,673,117,457.82
  5. Step 5: Solve for x
    x = 3,673,117,457.82/61,041.86
  6. Step 6: Final answer
    x = 60,173.75

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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.