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Finding the Fourth Proportional to 118,703.33, 163,811.07 and 64,993.34

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Solution

The fourth proportional to 118,703.33, 163,811.07 and 64,993.34 is: 89,691.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,703.33 : 163,811.07 = 64,993.34 : x
  2. Step 2: Convert to fraction form
    118,703.33/163,811.07 = 64,993.34/x
  3. Step 3: Cross multiply
    118,703.33x = 163,811.07 × 64,993.34
  4. Step 4: Simplify right side
    118,703.33x = 10,646,627,424.25
  5. Step 5: Solve for x
    x = 10,646,627,424.25/118,703.33
  6. Step 6: Final answer
    x = 89,691.06

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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.