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Finding the Fourth Proportional to 264,385.95, 395,742.30 and 169,489.32

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Solution

The fourth proportional to 264,385.95, 395,742.30 and 169,489.32 is: 253,697.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,385.95 : 395,742.30 = 169,489.32 : x
  2. Step 2: Convert to fraction form
    264,385.95/395,742.30 = 169,489.32/x
  3. Step 3: Cross multiply
    264,385.95x = 395,742.30 × 169,489.32
  4. Step 4: Simplify right side
    264,385.95x = 67,074,091,343.52
  5. Step 5: Solve for x
    x = 67,074,091,343.52/264,385.95
  6. Step 6: Final answer
    x = 253,697.64

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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.