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Finding the Fourth Proportional to 63,051.66, 87,017.42 and 47,108.43

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Solution

The fourth proportional to 63,051.66, 87,017.42 and 47,108.43 is: 65,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,051.66 : 87,017.42 = 47,108.43 : x
  2. Step 2: Convert to fraction form
    63,051.66/87,017.42 = 47,108.43/x
  3. Step 3: Cross multiply
    63,051.66x = 87,017.42 × 47,108.43
  4. Step 4: Simplify right side
    63,051.66x = 4,099,254,038.85
  5. Step 5: Solve for x
    x = 4,099,254,038.85/63,051.66
  6. Step 6: Final answer
    x = 65,014.21

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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.