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Finding the Fourth Proportional to 151,046.68, 208,449.70 and 83,066.44

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Solution

The fourth proportional to 151,046.68, 208,449.70 and 83,066.44 is: 114,634.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,046.68 : 208,449.70 = 83,066.44 : x
  2. Step 2: Convert to fraction form
    151,046.68/208,449.70 = 83,066.44/x
  3. Step 3: Cross multiply
    151,046.68x = 208,449.70 × 83,066.44
  4. Step 4: Simplify right side
    151,046.68x = 17,315,174,498.07
  5. Step 5: Solve for x
    x = 17,315,174,498.07/151,046.68
  6. Step 6: Final answer
    x = 114,634.59

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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.