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Finding the Fourth Proportional to 118,944.48, 164,114.40 and 68,643.36

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Solution

The fourth proportional to 118,944.48, 164,114.40 and 68,643.36 is: 94,711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,944.48 : 164,114.40 = 68,643.36 : x
  2. Step 2: Convert to fraction form
    118,944.48/164,114.40 = 68,643.36/x
  3. Step 3: Cross multiply
    118,944.48x = 164,114.40 × 68,643.36
  4. Step 4: Simplify right side
    118,944.48x = 11,265,363,840.38
  5. Step 5: Solve for x
    x = 11,265,363,840.38/118,944.48
  6. Step 6: Final answer
    x = 94,711.11

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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.