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Finding the Fourth Proportional to 118,763.93, 163,896.87 and 67,775.64

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Solution

The fourth proportional to 118,763.93, 163,896.87 and 67,775.64 is: 93,531.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,763.93 : 163,896.87 = 67,775.64 : x
  2. Step 2: Convert to fraction form
    118,763.93/163,896.87 = 67,775.64/x
  3. Step 3: Cross multiply
    118,763.93x = 163,896.87 × 67,775.64
  4. Step 4: Simplify right side
    118,763.93x = 11,108,215,512.41
  5. Step 5: Solve for x
    x = 11,108,215,512.41/118,763.93
  6. Step 6: Final answer
    x = 93,531.90

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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.