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Finding the Fourth Proportional to 89,803.07, 123,929.07 and 49,518.27

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Solution

The fourth proportional to 89,803.07, 123,929.07 and 49,518.27 is: 68,335.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,803.07 : 123,929.07 = 49,518.27 : x
  2. Step 2: Convert to fraction form
    89,803.07/123,929.07 = 49,518.27/x
  3. Step 3: Cross multiply
    89,803.07x = 123,929.07 × 49,518.27
  4. Step 4: Simplify right side
    89,803.07x = 6,136,753,149.11
  5. Step 5: Solve for x
    x = 6,136,753,149.11/89,803.07
  6. Step 6: Final answer
    x = 68,335.68

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1.5x scale

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.