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Finding the Fourth Proportional to 357,394.78, 536,110.62 and 91,157.62

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Solution

The fourth proportional to 357,394.78, 536,110.62 and 91,157.62 is: 136,741.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,394.78 : 536,110.62 = 91,157.62 : x
  2. Step 2: Convert to fraction form
    357,394.78/536,110.62 = 91,157.62/x
  3. Step 3: Cross multiply
    357,394.78x = 536,110.62 × 91,157.62
  4. Step 4: Simplify right side
    357,394.78x = 48,870,568,175.92
  5. Step 5: Solve for x
    x = 48,870,568,175.92/357,394.78
  6. Step 6: Final answer
    x = 136,741.14

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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.