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Finding the Fourth Proportional to 207,251.88, 285,987.18 and 116,605.85

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Solution

The fourth proportional to 207,251.88, 285,987.18 and 116,605.85 is: 160,904.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,251.88 : 285,987.18 = 116,605.85 : x
  2. Step 2: Convert to fraction form
    207,251.88/285,987.18 = 116,605.85/x
  3. Step 3: Cross multiply
    207,251.88x = 285,987.18 × 116,605.85
  4. Step 4: Simplify right side
    207,251.88x = 33,347,776,783.07
  5. Step 5: Solve for x
    x = 33,347,776,783.07/207,251.88
  6. Step 6: Final answer
    x = 160,904.58

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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.