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Finding the Fourth Proportional to 194,471.50, 291,707.26 and 63,143.50

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Solution

The fourth proportional to 194,471.50, 291,707.26 and 63,143.50 is: 94,715.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,471.50 : 291,707.26 = 63,143.50 : x
  2. Step 2: Convert to fraction form
    194,471.50/291,707.26 = 63,143.50/x
  3. Step 3: Cross multiply
    194,471.50x = 291,707.26 × 63,143.50
  4. Step 4: Simplify right side
    194,471.50x = 18,419,417,371.81
  5. Step 5: Solve for x
    x = 18,419,417,371.81/194,471.50
  6. Step 6: Final answer
    x = 94,715.25

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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.