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Finding the Fourth Proportional to 61,751.50, 85,217.40 and 33,457.19

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Solution

The fourth proportional to 61,751.50, 85,217.40 and 33,457.19 is: 46,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,751.50 : 85,217.40 = 33,457.19 : x
  2. Step 2: Convert to fraction form
    61,751.50/85,217.40 = 33,457.19/x
  3. Step 3: Cross multiply
    61,751.50x = 85,217.40 × 33,457.19
  4. Step 4: Simplify right side
    61,751.50x = 2,851,134,317.02
  5. Step 5: Solve for x
    x = 2,851,134,317.02/61,751.50
  6. Step 6: Final answer
    x = 46,171.10

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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.