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Finding the Fourth Proportional to 147,169.68, 203,098.50 and 104,226

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Solution

The fourth proportional to 147,169.68, 203,098.50 and 104,226 is: 143,834.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,169.68 : 203,098.50 = 104,226 : x
  2. Step 2: Convert to fraction form
    147,169.68/203,098.50 = 104,226/x
  3. Step 3: Cross multiply
    147,169.68x = 203,098.50 × 104,226
  4. Step 4: Simplify right side
    147,169.68x = 21,168,144,261
  5. Step 5: Solve for x
    x = 21,168,144,261/147,169.68
  6. Step 6: Final answer
    x = 143,834.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.