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Finding the Fourth Proportional to 162,317.60, 243,310.80 and 109,732.40

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Solution

The fourth proportional to 162,317.60, 243,310.80 and 109,732.40 is: 164,486.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,317.60 : 243,310.80 = 109,732.40 : x
  2. Step 2: Convert to fraction form
    162,317.60/243,310.80 = 109,732.40/x
  3. Step 3: Cross multiply
    162,317.60x = 243,310.80 × 109,732.40
  4. Step 4: Simplify right side
    162,317.60x = 26,699,078,029.92
  5. Step 5: Solve for x
    x = 26,699,078,029.92/162,317.60
  6. Step 6: Final answer
    x = 164,486.65

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1.5x scale

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.