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Finding the Fourth Proportional to 118,367.70, 177,551.55 and 74,130.90

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Solution

The fourth proportional to 118,367.70, 177,551.55 and 74,130.90 is: 111,196.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,367.70 : 177,551.55 = 74,130.90 : x
  2. Step 2: Convert to fraction form
    118,367.70/177,551.55 = 74,130.90/x
  3. Step 3: Cross multiply
    118,367.70x = 177,551.55 × 74,130.90
  4. Step 4: Simplify right side
    118,367.70x = 13,162,056,197.90
  5. Step 5: Solve for x
    x = 13,162,056,197.90/118,367.70
  6. Step 6: Final answer
    x = 111,196.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.