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Finding the Fourth Proportional to 270,065.55, 405,147.53 and 92,590.50

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Solution

The fourth proportional to 270,065.55, 405,147.53 and 92,590.50 is: 138,902.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,065.55 : 405,147.53 = 92,590.50 : x
  2. Step 2: Convert to fraction form
    270,065.55/405,147.53 = 92,590.50/x
  3. Step 3: Cross multiply
    270,065.55x = 405,147.53 × 92,590.50
  4. Step 4: Simplify right side
    270,065.55x = 37,512,812,376.47
  5. Step 5: Solve for x
    x = 37,512,812,376.47/270,065.55
  6. Step 6: Final answer
    x = 138,902.62

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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.