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Finding the Fourth Proportional to 118,496, 163,524.44 and 64,781.24

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Solution

The fourth proportional to 118,496, 163,524.44 and 64,781.24 is: 89,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,496 : 163,524.44 = 64,781.24 : x
  2. Step 2: Convert to fraction form
    118,496/163,524.44 = 64,781.24/x
  3. Step 3: Cross multiply
    118,496x = 163,524.44 × 64,781.24
  4. Step 4: Simplify right side
    118,496x = 10,593,315,993.51
  5. Step 5: Solve for x
    x = 10,593,315,993.51/118,496
  6. Step 6: Final answer
    x = 89,398.09

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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.