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Finding the Fourth Proportional to 151,469.58, 209,037.15 and 83,486.46

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Solution

The fourth proportional to 151,469.58, 209,037.15 and 83,486.46 is: 115,216.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,469.58 : 209,037.15 = 83,486.46 : x
  2. Step 2: Convert to fraction form
    151,469.58/209,037.15 = 83,486.46/x
  3. Step 3: Cross multiply
    151,469.58x = 209,037.15 × 83,486.46
  4. Step 4: Simplify right side
    151,469.58x = 17,451,771,661.99
  5. Step 5: Solve for x
    x = 17,451,771,661.99/151,469.58
  6. Step 6: Final answer
    x = 115,216.35

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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.