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Finding the Fourth Proportional to 356,719.14, 535,167.81 and 251,743.14

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Solution

The fourth proportional to 356,719.14, 535,167.81 and 251,743.14 is: 377,677.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,719.14 : 535,167.81 = 251,743.14 : x
  2. Step 2: Convert to fraction form
    356,719.14/535,167.81 = 251,743.14/x
  3. Step 3: Cross multiply
    356,719.14x = 535,167.81 × 251,743.14
  4. Step 4: Simplify right side
    356,719.14x = 134,724,824,916.32
  5. Step 5: Solve for x
    x = 134,724,824,916.32/356,719.14
  6. Step 6: Final answer
    x = 377,677.59

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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.