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Finding the Fourth Proportional to 111,279.74, 166,929.88 and 36,400.32

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Solution

The fourth proportional to 111,279.74, 166,929.88 and 36,400.32 is: 54,603.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,279.74 : 166,929.88 = 36,400.32 : x
  2. Step 2: Convert to fraction form
    111,279.74/166,929.88 = 36,400.32/x
  3. Step 3: Cross multiply
    111,279.74x = 166,929.88 × 36,400.32
  4. Step 4: Simplify right side
    111,279.74x = 6,076,301,049.56
  5. Step 5: Solve for x
    x = 6,076,301,049.56/111,279.74
  6. Step 6: Final answer
    x = 54,603.84

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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.