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Finding the Fourth Proportional to 354,846.11, 532,276.64 and 127,156.56

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Solution

The fourth proportional to 354,846.11, 532,276.64 and 127,156.56 is: 190,737.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,846.11 : 532,276.64 = 127,156.56 : x
  2. Step 2: Convert to fraction form
    354,846.11/532,276.64 = 127,156.56/x
  3. Step 3: Cross multiply
    354,846.11x = 532,276.64 × 127,156.56
  4. Step 4: Simplify right side
    354,846.11x = 67,682,466,510.76
  5. Step 5: Solve for x
    x = 67,682,466,510.76/354,846.11
  6. Step 6: Final answer
    x = 190,737.52

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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.