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Finding the Fourth Proportional to 193,154, 266,553.48 and 112,637.36

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Solution

The fourth proportional to 193,154, 266,553.48 and 112,637.36 is: 155,440.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,154 : 266,553.48 = 112,637.36 : x
  2. Step 2: Convert to fraction form
    193,154/266,553.48 = 112,637.36/x
  3. Step 3: Cross multiply
    193,154x = 266,553.48 × 112,637.36
  4. Step 4: Simplify right side
    193,154x = 30,023,880,286.01
  5. Step 5: Solve for x
    x = 30,023,880,286.01/193,154
  6. Step 6: Final answer
    x = 155,440.12

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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.