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Finding the Fourth Proportional to 201,087.78, 277,631.19 and 124,703.16

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Solution

The fourth proportional to 201,087.78, 277,631.19 and 124,703.16 is: 172,171.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,087.78 : 277,631.19 = 124,703.16 : x
  2. Step 2: Convert to fraction form
    201,087.78/277,631.19 = 124,703.16/x
  3. Step 3: Cross multiply
    201,087.78x = 277,631.19 × 124,703.16
  4. Step 4: Simplify right side
    201,087.78x = 34,621,486,707.56
  5. Step 5: Solve for x
    x = 34,621,486,707.56/201,087.78
  6. Step 6: Final answer
    x = 172,171.01

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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.