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Finding the Fourth Proportional to 118,782.50, 163,922.49 and 67,794.21

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Solution

The fourth proportional to 118,782.50, 163,922.49 and 67,794.21 is: 93,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,782.50 : 163,922.49 = 67,794.21 : x
  2. Step 2: Convert to fraction form
    118,782.50/163,922.49 = 67,794.21/x
  3. Step 3: Cross multiply
    118,782.50x = 163,922.49 × 67,794.21
  4. Step 4: Simplify right side
    118,782.50x = 11,112,995,710.78
  5. Step 5: Solve for x
    x = 11,112,995,710.78/118,782.50
  6. Step 6: Final answer
    x = 93,557.52

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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.