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Finding the Fourth Proportional to 357,180.96, 535,762.80 and 90,942.08

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Solution

The fourth proportional to 357,180.96, 535,762.80 and 90,942.08 is: 136,410.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,180.96 : 535,762.80 = 90,942.08 : x
  2. Step 2: Convert to fraction form
    357,180.96/535,762.80 = 90,942.08/x
  3. Step 3: Cross multiply
    357,180.96x = 535,762.80 × 90,942.08
  4. Step 4: Simplify right side
    357,180.96x = 48,723,383,418.62
  5. Step 5: Solve for x
    x = 48,723,383,418.62/357,180.96
  6. Step 6: Final answer
    x = 136,410.92

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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.