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Finding the Fourth Proportional to 69,200.55, 95,503.80 and 42,360.80

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Solution

The fourth proportional to 69,200.55, 95,503.80 and 42,360.80 is: 58,462.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,200.55 : 95,503.80 = 42,360.80 : x
  2. Step 2: Convert to fraction form
    69,200.55/95,503.80 = 42,360.80/x
  3. Step 3: Cross multiply
    69,200.55x = 95,503.80 × 42,360.80
  4. Step 4: Simplify right side
    69,200.55x = 4,045,616,893.52
  5. Step 5: Solve for x
    x = 4,045,616,893.52/69,200.55
  6. Step 6: Final answer
    x = 58,462.21

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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.