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Finding the Fourth Proportional to 207,394.56, 286,211.34 and 126,857.88

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Solution

The fourth proportional to 207,394.56, 286,211.34 and 126,857.88 is: 175,068.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,394.56 : 286,211.34 = 126,857.88 : x
  2. Step 2: Convert to fraction form
    207,394.56/286,211.34 = 126,857.88/x
  3. Step 3: Cross multiply
    207,394.56x = 286,211.34 × 126,857.88
  4. Step 4: Simplify right side
    207,394.56x = 36,308,163,824.36
  5. Step 5: Solve for x
    x = 36,308,163,824.36/207,394.56
  6. Step 6: Final answer
    x = 175,068.06

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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.