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Finding the Fourth Proportional to 104,816.40, 144,624.16 and 62,366.64

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Solution

The fourth proportional to 104,816.40, 144,624.16 and 62,366.64 is: 86,052.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,816.40 : 144,624.16 = 62,366.64 : x
  2. Step 2: Convert to fraction form
    104,816.40/144,624.16 = 62,366.64/x
  3. Step 3: Cross multiply
    104,816.40x = 144,624.16 × 62,366.64
  4. Step 4: Simplify right side
    104,816.40x = 9,019,722,922.02
  5. Step 5: Solve for x
    x = 9,019,722,922.02/104,816.40
  6. Step 6: Final answer
    x = 86,052.59

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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.