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Finding the Fourth Proportional to 74,718.58, 103,103.31 and 44,499.70

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Solution

The fourth proportional to 74,718.58, 103,103.31 and 44,499.70 is: 61,404.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,718.58 : 103,103.31 = 44,499.70 : x
  2. Step 2: Convert to fraction form
    74,718.58/103,103.31 = 44,499.70/x
  3. Step 3: Cross multiply
    74,718.58x = 103,103.31 × 44,499.70
  4. Step 4: Simplify right side
    74,718.58x = 4,588,066,364.01
  5. Step 5: Solve for x
    x = 4,588,066,364.01/74,718.58
  6. Step 6: Final answer
    x = 61,404.62

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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.