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Finding the Fourth Proportional to 104,665.92, 144,480.80 and 64,396.16

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Solution

The fourth proportional to 104,665.92, 144,480.80 and 64,396.16 is: 88,892.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,665.92 : 144,480.80 = 64,396.16 : x
  2. Step 2: Convert to fraction form
    104,665.92/144,480.80 = 64,396.16/x
  3. Step 3: Cross multiply
    104,665.92x = 144,480.80 × 64,396.16
  4. Step 4: Simplify right side
    104,665.92x = 9,304,008,713.73
  5. Step 5: Solve for x
    x = 9,304,008,713.73/104,665.92
  6. Step 6: Final answer
    x = 88,892.44

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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.