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Finding the Fourth Proportional to 357,778.22, 536,664.69 and 91,538.10

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Solution

The fourth proportional to 357,778.22, 536,664.69 and 91,538.10 is: 137,306.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,778.22 : 536,664.69 = 91,538.10 : x
  2. Step 2: Convert to fraction form
    357,778.22/536,664.69 = 91,538.10/x
  3. Step 3: Cross multiply
    357,778.22x = 536,664.69 × 91,538.10
  4. Step 4: Simplify right side
    357,778.22x = 49,125,266,059.69
  5. Step 5: Solve for x
    x = 49,125,266,059.69/357,778.22
  6. Step 6: Final answer
    x = 137,306.48

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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.