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Finding the Fourth Proportional to 74,473.44, 102,689.93 and 69,749.52

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Solution

The fourth proportional to 74,473.44, 102,689.93 and 69,749.52 is: 96,176.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,473.44 : 102,689.93 = 69,749.52 : x
  2. Step 2: Convert to fraction form
    74,473.44/102,689.93 = 69,749.52/x
  3. Step 3: Cross multiply
    74,473.44x = 102,689.93 × 69,749.52
  4. Step 4: Simplify right side
    74,473.44x = 7,162,573,300.91
  5. Step 5: Solve for x
    x = 7,162,573,300.91/74,473.44
  6. Step 6: Final answer
    x = 96,176.21

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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.