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Finding the Fourth Proportional to 89,562, 123,595.68 and 49,818

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Solution

The fourth proportional to 89,562, 123,595.68 and 49,818 is: 68,748.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,562 : 123,595.68 = 49,818 : x
  2. Step 2: Convert to fraction form
    89,562/123,595.68 = 49,818/x
  3. Step 3: Cross multiply
    89,562x = 123,595.68 × 49,818
  4. Step 4: Simplify right side
    89,562x = 6,157,289,586.24
  5. Step 5: Solve for x
    x = 6,157,289,586.24/89,562
  6. Step 6: Final answer
    x = 68,748.91

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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.