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Finding the Fourth Proportional to 104,385.68, 144,089.62 and 61,944.22

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Solution

The fourth proportional to 104,385.68, 144,089.62 and 61,944.22 is: 85,505.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,385.68 : 144,089.62 = 61,944.22 : x
  2. Step 2: Convert to fraction form
    104,385.68/144,089.62 = 61,944.22/x
  3. Step 3: Cross multiply
    104,385.68x = 144,089.62 × 61,944.22
  4. Step 4: Simplify right side
    104,385.68x = 8,925,519,121.00
  5. Step 5: Solve for x
    x = 8,925,519,121.00/104,385.68
  6. Step 6: Final answer
    x = 85,505.21

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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.