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Finding the Fourth Proportional to 262,753.74, 393,787.98 and 120,547.71

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Solution

The fourth proportional to 262,753.74, 393,787.98 and 120,547.71 is: 180,664.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,753.74 : 393,787.98 = 120,547.71 : x
  2. Step 2: Convert to fraction form
    262,753.74/393,787.98 = 120,547.71/x
  3. Step 3: Cross multiply
    262,753.74x = 393,787.98 × 120,547.71
  4. Step 4: Simplify right side
    262,753.74x = 47,470,239,214.53
  5. Step 5: Solve for x
    x = 47,470,239,214.53/262,753.74
  6. Step 6: Final answer
    x = 180,664.37

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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.