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Finding the Fourth Proportional to 109,487.32, 164,230.98 and 26,381.32

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Solution

The fourth proportional to 109,487.32, 164,230.98 and 26,381.32 is: 39,571.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,487.32 : 164,230.98 = 26,381.32 : x
  2. Step 2: Convert to fraction form
    109,487.32/164,230.98 = 26,381.32/x
  3. Step 3: Cross multiply
    109,487.32x = 164,230.98 × 26,381.32
  4. Step 4: Simplify right side
    109,487.32x = 4,332,630,037.29
  5. Step 5: Solve for x
    x = 4,332,630,037.29/109,487.32
  6. Step 6: Final answer
    x = 39,571.98

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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.