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Finding the Fourth Proportional to 157,368.73, 236,122.87 and 82,471.07

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Solution

The fourth proportional to 157,368.73, 236,122.87 and 82,471.07 is: 123,743.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,368.73 : 236,122.87 = 82,471.07 : x
  2. Step 2: Convert to fraction form
    157,368.73/236,122.87 = 82,471.07/x
  3. Step 3: Cross multiply
    157,368.73x = 236,122.87 × 82,471.07
  4. Step 4: Simplify right side
    157,368.73x = 19,473,305,740.37
  5. Step 5: Solve for x
    x = 19,473,305,740.37/157,368.73
  6. Step 6: Final answer
    x = 123,743.17

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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.