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Finding the Fourth Proportional to 118,888.86, 164,024.60 and 67,864.78

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Solution

The fourth proportional to 118,888.86, 164,024.60 and 67,864.78 is: 93,629.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,888.86 : 164,024.60 = 67,864.78 : x
  2. Step 2: Convert to fraction form
    118,888.86/164,024.60 = 67,864.78/x
  3. Step 3: Cross multiply
    118,888.86x = 164,024.60 × 67,864.78
  4. Step 4: Simplify right side
    118,888.86x = 11,131,493,393.59
  5. Step 5: Solve for x
    x = 11,131,493,393.59/118,888.86
  6. Step 6: Final answer
    x = 93,629.41

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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.