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Finding the Fourth Proportional to 263,575.62, 363,719.61 and 156,155.94

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Solution

The fourth proportional to 263,575.62, 363,719.61 and 156,155.94 is: 215,486.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,575.62 : 363,719.61 = 156,155.94 : x
  2. Step 2: Convert to fraction form
    263,575.62/363,719.61 = 156,155.94/x
  3. Step 3: Cross multiply
    263,575.62x = 363,719.61 × 156,155.94
  4. Step 4: Simplify right side
    263,575.62x = 56,796,977,595.98
  5. Step 5: Solve for x
    x = 56,796,977,595.98/263,575.62
  6. Step 6: Final answer
    x = 215,486.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.