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Finding the Fourth Proportional to 239,173.76, 330,062.24 and 131,746.50

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Solution

The fourth proportional to 239,173.76, 330,062.24 and 131,746.50 is: 181,811.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,173.76 : 330,062.24 = 131,746.50 : x
  2. Step 2: Convert to fraction form
    239,173.76/330,062.24 = 131,746.50/x
  3. Step 3: Cross multiply
    239,173.76x = 330,062.24 × 131,746.50
  4. Step 4: Simplify right side
    239,173.76x = 43,484,545,231.53
  5. Step 5: Solve for x
    x = 43,484,545,231.53/239,173.76
  6. Step 6: Final answer
    x = 181,811.52

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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.