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Finding the Fourth Proportional to 162,325.10, 243,322.05 and 109,739.90

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Solution

The fourth proportional to 162,325.10, 243,322.05 and 109,739.90 is: 164,497.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,325.10 : 243,322.05 = 109,739.90 : x
  2. Step 2: Convert to fraction form
    162,325.10/243,322.05 = 109,739.90/x
  3. Step 3: Cross multiply
    162,325.10x = 243,322.05 × 109,739.90
  4. Step 4: Simplify right side
    162,325.10x = 26,702,137,434.80
  5. Step 5: Solve for x
    x = 26,702,137,434.80/162,325.10
  6. Step 6: Final answer
    x = 164,497.90

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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.