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Finding the Fourth Proportional to 201,019.86, 277,537.20 and 124,620.60

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Solution

The fourth proportional to 201,019.86, 277,537.20 and 124,620.60 is: 172,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,019.86 : 277,537.20 = 124,620.60 : x
  2. Step 2: Convert to fraction form
    201,019.86/277,537.20 = 124,620.60/x
  3. Step 3: Cross multiply
    201,019.86x = 277,537.20 × 124,620.60
  4. Step 4: Simplify right side
    201,019.86x = 34,586,852,386.32
  5. Step 5: Solve for x
    x = 34,586,852,386.32/201,019.86
  6. Step 6: Final answer
    x = 172,056.89

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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.