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Finding the Fourth Proportional to 201,398.04, 277,931.06 and 109,517.62

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Solution

The fourth proportional to 201,398.04, 277,931.06 and 109,517.62 is: 151,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,398.04 : 277,931.06 = 109,517.62 : x
  2. Step 2: Convert to fraction form
    201,398.04/277,931.06 = 109,517.62/x
  3. Step 3: Cross multiply
    201,398.04x = 277,931.06 × 109,517.62
  4. Step 4: Simplify right side
    201,398.04x = 30,438,348,215.28
  5. Step 5: Solve for x
    x = 30,438,348,215.28/201,398.04
  6. Step 6: Final answer
    x = 151,135.28

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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.