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Finding the Fourth Proportional to 110,692.32, 152,746.32 and 61,635.60

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Solution

The fourth proportional to 110,692.32, 152,746.32 and 61,635.60 is: 85,052.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,692.32 : 152,746.32 = 61,635.60 : x
  2. Step 2: Convert to fraction form
    110,692.32/152,746.32 = 61,635.60/x
  3. Step 3: Cross multiply
    110,692.32x = 152,746.32 × 61,635.60
  4. Step 4: Simplify right side
    110,692.32x = 9,414,611,080.99
  5. Step 5: Solve for x
    x = 9,414,611,080.99/110,692.32
  6. Step 6: Final answer
    x = 85,052.07

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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.