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Finding the Fourth Proportional to 295,090.60, 442,052.70 and 161,732.20

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Solution

The fourth proportional to 295,090.60, 442,052.70 and 161,732.20 is: 242,278.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,090.60 : 442,052.70 = 161,732.20 : x
  2. Step 2: Convert to fraction form
    295,090.60/442,052.70 = 161,732.20/x
  3. Step 3: Cross multiply
    295,090.60x = 442,052.70 × 161,732.20
  4. Step 4: Simplify right side
    295,090.60x = 71,494,155,686.94
  5. Step 5: Solve for x
    x = 71,494,155,686.94/295,090.60
  6. Step 6: Final answer
    x = 242,278.66

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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.