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Finding the Fourth Proportional to 61,610.40, 92,415.60 and 22,168.80

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Solution

The fourth proportional to 61,610.40, 92,415.60 and 22,168.80 is: 33,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,610.40 : 92,415.60 = 22,168.80 : x
  2. Step 2: Convert to fraction form
    61,610.40/92,415.60 = 22,168.80/x
  3. Step 3: Cross multiply
    61,610.40x = 92,415.60 × 22,168.80
  4. Step 4: Simplify right side
    61,610.40x = 2,048,742,953.28
  5. Step 5: Solve for x
    x = 2,048,742,953.28/61,610.40
  6. Step 6: Final answer
    x = 33,253.20

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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.