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Finding the Fourth Proportional to 61,550.40, 92,228.40 and 53,191.20

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Solution

The fourth proportional to 61,550.40, 92,228.40 and 53,191.20 is: 79,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,550.40 : 92,228.40 = 53,191.20 : x
  2. Step 2: Convert to fraction form
    61,550.40/92,228.40 = 53,191.20/x
  3. Step 3: Cross multiply
    61,550.40x = 92,228.40 × 53,191.20
  4. Step 4: Simplify right side
    61,550.40x = 4,905,739,270.08
  5. Step 5: Solve for x
    x = 4,905,739,270.08/61,550.40
  6. Step 6: Final answer
    x = 79,702.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.