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Finding the Fourth Proportional to 63,569.94, 87,687.77 and 45,689.16

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Solution

The fourth proportional to 63,569.94, 87,687.77 and 45,689.16 is: 63,023.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,569.94 : 87,687.77 = 45,689.16 : x
  2. Step 2: Convert to fraction form
    63,569.94/87,687.77 = 45,689.16/x
  3. Step 3: Cross multiply
    63,569.94x = 87,687.77 × 45,689.16
  4. Step 4: Simplify right side
    63,569.94x = 4,006,380,653.96
  5. Step 5: Solve for x
    x = 4,006,380,653.96/63,569.94
  6. Step 6: Final answer
    x = 63,023.19

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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.