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Finding the Fourth Proportional to 183,489, 253,215.28 and 107,060.64

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Solution

The fourth proportional to 183,489, 253,215.28 and 107,060.64 is: 147,743.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,489 : 253,215.28 = 107,060.64 : x
  2. Step 2: Convert to fraction form
    183,489/253,215.28 = 107,060.64/x
  3. Step 3: Cross multiply
    183,489x = 253,215.28 × 107,060.64
  4. Step 4: Simplify right side
    183,489x = 27,109,389,934.58
  5. Step 5: Solve for x
    x = 27,109,389,934.58/183,489
  6. Step 6: Final answer
    x = 147,743.95

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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.