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Finding the Fourth Proportional to 162,104.40, 243,168.90 and 43,774.05

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Solution

The fourth proportional to 162,104.40, 243,168.90 and 43,774.05 is: 65,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,104.40 : 243,168.90 = 43,774.05 : x
  2. Step 2: Convert to fraction form
    162,104.40/243,168.90 = 43,774.05/x
  3. Step 3: Cross multiply
    162,104.40x = 243,168.90 × 43,774.05
  4. Step 4: Simplify right side
    162,104.40x = 10,644,487,587.05
  5. Step 5: Solve for x
    x = 10,644,487,587.05/162,104.40
  6. Step 6: Final answer
    x = 65,664.40

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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.