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Finding the Fourth Proportional to 162,683.64, 243,981.72 and 57,474.36

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Solution

The fourth proportional to 162,683.64, 243,981.72 and 57,474.36 is: 86,196.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,683.64 : 243,981.72 = 57,474.36 : x
  2. Step 2: Convert to fraction form
    162,683.64/243,981.72 = 57,474.36/x
  3. Step 3: Cross multiply
    162,683.64x = 243,981.72 × 57,474.36
  4. Step 4: Simplify right side
    162,683.64x = 14,022,693,208.70
  5. Step 5: Solve for x
    x = 14,022,693,208.70/162,683.64
  6. Step 6: Final answer
    x = 86,196.09

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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.