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Finding the Fourth Proportional to 85,820.98, 118,439.98 and 47,592.52

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Solution

The fourth proportional to 85,820.98, 118,439.98 and 47,592.52 is: 65,681.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,820.98 : 118,439.98 = 47,592.52 : x
  2. Step 2: Convert to fraction form
    85,820.98/118,439.98 = 47,592.52/x
  3. Step 3: Cross multiply
    85,820.98x = 118,439.98 × 47,592.52
  4. Step 4: Simplify right side
    85,820.98x = 5,636,857,027.04
  5. Step 5: Solve for x
    x = 5,636,857,027.04/85,820.98
  6. Step 6: Final answer
    x = 65,681.57

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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.