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Finding the Fourth Proportional to 277,049.06, 415,573.64 and 66,687.00

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Solution

The fourth proportional to 277,049.06, 415,573.64 and 66,687.00 is: 100,030.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,049.06 : 415,573.64 = 66,687.00 : x
  2. Step 2: Convert to fraction form
    277,049.06/415,573.64 = 66,687.00/x
  3. Step 3: Cross multiply
    277,049.06x = 415,573.64 × 66,687.00
  4. Step 4: Simplify right side
    277,049.06x = 27,713,357,688.92
  5. Step 5: Solve for x
    x = 27,713,357,688.92/277,049.06
  6. Step 6: Final answer
    x = 100,030.51

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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.