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Finding the Fourth Proportional to 111,115.53, 166,683.42 and 36,216.45

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Solution

The fourth proportional to 111,115.53, 166,683.42 and 36,216.45 is: 54,327.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,115.53 : 166,683.42 = 36,216.45 : x
  2. Step 2: Convert to fraction form
    111,115.53/166,683.42 = 36,216.45/x
  3. Step 3: Cross multiply
    111,115.53x = 166,683.42 × 36,216.45
  4. Step 4: Simplify right side
    111,115.53x = 6,036,681,746.26
  5. Step 5: Solve for x
    x = 6,036,681,746.26/111,115.53
  6. Step 6: Final answer
    x = 54,327.98

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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.