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Finding the Fourth Proportional to 267,383.13, 401,070.42 and 64,980.87

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Solution

The fourth proportional to 267,383.13, 401,070.42 and 64,980.87 is: 97,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,383.13 : 401,070.42 = 64,980.87 : x
  2. Step 2: Convert to fraction form
    267,383.13/401,070.42 = 64,980.87/x
  3. Step 3: Cross multiply
    267,383.13x = 401,070.42 × 64,980.87
  4. Step 4: Simplify right side
    267,383.13x = 26,061,904,822.87
  5. Step 5: Solve for x
    x = 26,061,904,822.87/267,383.13
  6. Step 6: Final answer
    x = 97,470.27

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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.