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Finding the Fourth Proportional to 230,843.06, 346,420.11 and 90,585.14

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Solution

The fourth proportional to 230,843.06, 346,420.11 and 90,585.14 is: 135,938.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,843.06 : 346,420.11 = 90,585.14 : x
  2. Step 2: Convert to fraction form
    230,843.06/346,420.11 = 90,585.14/x
  3. Step 3: Cross multiply
    230,843.06x = 346,420.11 × 90,585.14
  4. Step 4: Simplify right side
    230,843.06x = 31,380,514,163.17
  5. Step 5: Solve for x
    x = 31,380,514,163.17/230,843.06
  6. Step 6: Final answer
    x = 135,938.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.