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Finding the Fourth Proportional to 267,384.13, 401,071.92 and 64,981.87

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Solution

The fourth proportional to 267,384.13, 401,071.92 and 64,981.87 is: 97,471.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,384.13 : 401,071.92 = 64,981.87 : x
  2. Step 2: Convert to fraction form
    267,384.13/401,071.92 = 64,981.87/x
  3. Step 3: Cross multiply
    267,384.13x = 401,071.92 × 64,981.87
  4. Step 4: Simplify right side
    267,384.13x = 26,062,403,366.09
  5. Step 5: Solve for x
    x = 26,062,403,366.09/267,384.13
  6. Step 6: Final answer
    x = 97,471.77

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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.