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Finding the Fourth Proportional to 68,898.93, 103,262.13 and 29,409.81

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Solution

The fourth proportional to 68,898.93, 103,262.13 and 29,409.81 is: 44,077.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,898.93 : 103,262.13 = 29,409.81 : x
  2. Step 2: Convert to fraction form
    68,898.93/103,262.13 = 29,409.81/x
  3. Step 3: Cross multiply
    68,898.93x = 103,262.13 × 29,409.81
  4. Step 4: Simplify right side
    68,898.93x = 3,036,919,623.50
  5. Step 5: Solve for x
    x = 3,036,919,623.50/68,898.93
  6. Step 6: Final answer
    x = 44,077.89

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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.