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Finding the Fourth Proportional to 193,061.59, 266,129.67 and 135,539.54

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Solution

The fourth proportional to 193,061.59, 266,129.67 and 135,539.54 is: 186,837.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,061.59 : 266,129.67 = 135,539.54 : x
  2. Step 2: Convert to fraction form
    193,061.59/266,129.67 = 135,539.54/x
  3. Step 3: Cross multiply
    193,061.59x = 266,129.67 × 135,539.54
  4. Step 4: Simplify right side
    193,061.59x = 36,071,093,962.33
  5. Step 5: Solve for x
    x = 36,071,093,962.33/193,061.59
  6. Step 6: Final answer
    x = 186,837.23

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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.