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Finding the Fourth Proportional to 162,387.96, 243,612.20 and 57,273.72

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Solution

The fourth proportional to 162,387.96, 243,612.20 and 57,273.72 is: 85,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,387.96 : 243,612.20 = 57,273.72 : x
  2. Step 2: Convert to fraction form
    162,387.96/243,612.20 = 57,273.72/x
  3. Step 3: Cross multiply
    162,387.96x = 243,612.20 × 57,273.72
  4. Step 4: Simplify right side
    162,387.96x = 13,952,576,931.38
  5. Step 5: Solve for x
    x = 13,952,576,931.38/162,387.96
  6. Step 6: Final answer
    x = 85,921.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.