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Finding the Fourth Proportional to 331,315.76, 496,275.40 and 151,552.56

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Solution

The fourth proportional to 331,315.76, 496,275.40 and 151,552.56 is: 227,009.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,315.76 : 496,275.40 = 151,552.56 : x
  2. Step 2: Convert to fraction form
    331,315.76/496,275.40 = 151,552.56/x
  3. Step 3: Cross multiply
    331,315.76x = 496,275.40 × 151,552.56
  4. Step 4: Simplify right side
    331,315.76x = 75,211,807,335.02
  5. Step 5: Solve for x
    x = 75,211,807,335.02/331,315.76
  6. Step 6: Final answer
    x = 227,009.45

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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.