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Finding the Fourth Proportional to 275,740.60, 413,682.90 and 88,756.60

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Solution

The fourth proportional to 275,740.60, 413,682.90 and 88,756.60 is: 133,158.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,740.60 : 413,682.90 = 88,756.60 : x
  2. Step 2: Convert to fraction form
    275,740.60/413,682.90 = 88,756.60/x
  3. Step 3: Cross multiply
    275,740.60x = 413,682.90 × 88,756.60
  4. Step 4: Simplify right side
    275,740.60x = 36,717,087,682.14
  5. Step 5: Solve for x
    x = 36,717,087,682.14/275,740.60
  6. Step 6: Final answer
    x = 133,158.08

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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.