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Finding the Fourth Proportional to 167,263.14, 230,815.26 and 90,780.51

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Solution

The fourth proportional to 167,263.14, 230,815.26 and 90,780.51 is: 125,272.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,263.14 : 230,815.26 = 90,780.51 : x
  2. Step 2: Convert to fraction form
    167,263.14/230,815.26 = 90,780.51/x
  3. Step 3: Cross multiply
    167,263.14x = 230,815.26 × 90,780.51
  4. Step 4: Simplify right side
    167,263.14x = 20,953,527,018.58
  5. Step 5: Solve for x
    x = 20,953,527,018.58/167,263.14
  6. Step 6: Final answer
    x = 125,272.83

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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.