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Finding the Fourth Proportional to 338,753.04, 508,124.64 and 82,586.64

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Solution

The fourth proportional to 338,753.04, 508,124.64 and 82,586.64 is: 123,878.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,753.04 : 508,124.64 = 82,586.64 : x
  2. Step 2: Convert to fraction form
    338,753.04/508,124.64 = 82,586.64/x
  3. Step 3: Cross multiply
    338,753.04x = 508,124.64 × 82,586.64
  4. Step 4: Simplify right side
    338,753.04x = 41,964,306,718.81
  5. Step 5: Solve for x
    x = 41,964,306,718.81/338,753.04
  6. Step 6: Final answer
    x = 123,878.76

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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.