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Finding the Fourth Proportional to 89,690.51, 123,773.04 and 49,404.39

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Solution

The fourth proportional to 89,690.51, 123,773.04 and 49,404.39 is: 68,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,690.51 : 123,773.04 = 49,404.39 : x
  2. Step 2: Convert to fraction form
    89,690.51/123,773.04 = 49,404.39/x
  3. Step 3: Cross multiply
    89,690.51x = 123,773.04 × 49,404.39
  4. Step 4: Simplify right side
    89,690.51x = 6,114,931,539.65
  5. Step 5: Solve for x
    x = 6,114,931,539.65/89,690.51
  6. Step 6: Final answer
    x = 68,178.14

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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.