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Finding the Fourth Proportional to 104,605.67, 144,376.70 and 66,410.70

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Solution

The fourth proportional to 104,605.67, 144,376.70 and 66,410.70 is: 91,660.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,605.67 : 144,376.70 = 66,410.70 : x
  2. Step 2: Convert to fraction form
    104,605.67/144,376.70 = 66,410.70/x
  3. Step 3: Cross multiply
    104,605.67x = 144,376.70 × 66,410.70
  4. Step 4: Simplify right side
    104,605.67x = 9,588,157,378.64
  5. Step 5: Solve for x
    x = 9,588,157,378.64/104,605.67
  6. Step 6: Final answer
    x = 91,660.02

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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.