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Finding the Fourth Proportional to 169,683.60, 254,671.20 and 75,059.40

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Solution

The fourth proportional to 169,683.60, 254,671.20 and 75,059.40 is: 112,653.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,683.60 : 254,671.20 = 75,059.40 : x
  2. Step 2: Convert to fraction form
    169,683.60/254,671.20 = 75,059.40/x
  3. Step 3: Cross multiply
    169,683.60x = 254,671.20 × 75,059.40
  4. Step 4: Simplify right side
    169,683.60x = 19,115,467,469.28
  5. Step 5: Solve for x
    x = 19,115,467,469.28/169,683.60
  6. Step 6: Final answer
    x = 112,653.59

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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.