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Finding the Fourth Proportional to 118,910.38, 164,090.05 and 67,913.08

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Solution

The fourth proportional to 118,910.38, 164,090.05 and 67,913.08 is: 93,716.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,910.38 : 164,090.05 = 67,913.08 : x
  2. Step 2: Convert to fraction form
    118,910.38/164,090.05 = 67,913.08/x
  3. Step 3: Cross multiply
    118,910.38x = 164,090.05 × 67,913.08
  4. Step 4: Simplify right side
    118,910.38x = 11,143,861,417.86
  5. Step 5: Solve for x
    x = 11,143,861,417.86/118,910.38
  6. Step 6: Final answer
    x = 93,716.47

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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.