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Finding the Fourth Proportional to 207,656.82, 286,676.58 and 166,371.72

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Solution

The fourth proportional to 207,656.82, 286,676.58 and 166,371.72 is: 229,681.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,656.82 : 286,676.58 = 166,371.72 : x
  2. Step 2: Convert to fraction form
    207,656.82/286,676.58 = 166,371.72/x
  3. Step 3: Cross multiply
    207,656.82x = 286,676.58 × 166,371.72
  4. Step 4: Simplify right side
    207,656.82x = 47,694,875,698.32
  5. Step 5: Solve for x
    x = 47,694,875,698.32/207,656.82
  6. Step 6: Final answer
    x = 229,681.24

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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.