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Finding the Fourth Proportional to 270,009.91, 372,611.28 and 149,159.59

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Solution

The fourth proportional to 270,009.91, 372,611.28 and 149,159.59 is: 205,838.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,009.91 : 372,611.28 = 149,159.59 : x
  2. Step 2: Convert to fraction form
    270,009.91/372,611.28 = 149,159.59/x
  3. Step 3: Cross multiply
    270,009.91x = 372,611.28 × 149,159.59
  4. Step 4: Simplify right side
    270,009.91x = 55,578,545,754.18
  5. Step 5: Solve for x
    x = 55,578,545,754.18/270,009.91
  6. Step 6: Final answer
    x = 205,838.91

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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.