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Finding the Fourth Proportional to 162,327.60, 243,325.80 and 109,742.40

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Solution

The fourth proportional to 162,327.60, 243,325.80 and 109,742.40 is: 164,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,327.60 : 243,325.80 = 109,742.40 : x
  2. Step 2: Convert to fraction form
    162,327.60/243,325.80 = 109,742.40/x
  3. Step 3: Cross multiply
    162,327.60x = 243,325.80 × 109,742.40
  4. Step 4: Simplify right side
    162,327.60x = 26,703,157,273.92
  5. Step 5: Solve for x
    x = 26,703,157,273.92/162,327.60
  6. Step 6: Final answer
    x = 164,501.65

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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.