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Finding the Fourth Proportional to 109,589.60, 164,262.90 and 43,007.60

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Solution

The fourth proportional to 109,589.60, 164,262.90 and 43,007.60 is: 64,463.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,589.60 : 164,262.90 = 43,007.60 : x
  2. Step 2: Convert to fraction form
    109,589.60/164,262.90 = 43,007.60/x
  3. Step 3: Cross multiply
    109,589.60x = 164,262.90 × 43,007.60
  4. Step 4: Simplify right side
    109,589.60x = 7,064,553,098.04
  5. Step 5: Solve for x
    x = 7,064,553,098.04/109,589.60
  6. Step 6: Final answer
    x = 64,463.72

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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.