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Finding the Fourth Proportional to 99,261.60, 148,892.40 and 92,700.60

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Solution

The fourth proportional to 99,261.60, 148,892.40 and 92,700.60 is: 139,050.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,261.60 : 148,892.40 = 92,700.60 : x
  2. Step 2: Convert to fraction form
    99,261.60/148,892.40 = 92,700.60/x
  3. Step 3: Cross multiply
    99,261.60x = 148,892.40 × 92,700.60
  4. Step 4: Simplify right side
    99,261.60x = 13,802,414,815.44
  5. Step 5: Solve for x
    x = 13,802,414,815.44/99,261.60
  6. Step 6: Final answer
    x = 139,050.90

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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.