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Finding the Fourth Proportional to 161,848.60, 242,643.30 and 68,277.40

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Solution

The fourth proportional to 161,848.60, 242,643.30 and 68,277.40 is: 102,361.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,848.60 : 242,643.30 = 68,277.40 : x
  2. Step 2: Convert to fraction form
    161,848.60/242,643.30 = 68,277.40/x
  3. Step 3: Cross multiply
    161,848.60x = 242,643.30 × 68,277.40
  4. Step 4: Simplify right side
    161,848.60x = 16,567,053,651.42
  5. Step 5: Solve for x
    x = 16,567,053,651.42/161,848.60
  6. Step 6: Final answer
    x = 102,361.43

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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.