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Finding the Fourth Proportional to 91,235.21, 136,837.96 and 32,057.08

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Solution

The fourth proportional to 91,235.21, 136,837.96 and 32,057.08 is: 48,080.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,235.21 : 136,837.96 = 32,057.08 : x
  2. Step 2: Convert to fraction form
    91,235.21/136,837.96 = 32,057.08/x
  3. Step 3: Cross multiply
    91,235.21x = 136,837.96 × 32,057.08
  4. Step 4: Simplify right side
    91,235.21x = 4,386,625,008.52
  5. Step 5: Solve for x
    x = 4,386,625,008.52/91,235.21
  6. Step 6: Final answer
    x = 48,080.40

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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.