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Finding the Fourth Proportional to 104,113.66, 143,618.22 and 65,861.44

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Solution

The fourth proportional to 104,113.66, 143,618.22 and 65,861.44 is: 90,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,113.66 : 143,618.22 = 65,861.44 : x
  2. Step 2: Convert to fraction form
    104,113.66/143,618.22 = 65,861.44/x
  3. Step 3: Cross multiply
    104,113.66x = 143,618.22 × 65,861.44
  4. Step 4: Simplify right side
    104,113.66x = 9,458,902,779.44
  5. Step 5: Solve for x
    x = 9,458,902,779.44/104,113.66
  6. Step 6: Final answer
    x = 90,851.70

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1.5x scale

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.