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Finding the Fourth Proportional to 111,663.15, 167,400.52 and 48,435.64

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Solution

The fourth proportional to 111,663.15, 167,400.52 and 48,435.64 is: 72,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,663.15 : 167,400.52 = 48,435.64 : x
  2. Step 2: Convert to fraction form
    111,663.15/167,400.52 = 48,435.64/x
  3. Step 3: Cross multiply
    111,663.15x = 167,400.52 × 48,435.64
  4. Step 4: Simplify right side
    111,663.15x = 8,108,151,322.53
  5. Step 5: Solve for x
    x = 8,108,151,322.53/111,663.15
  6. Step 6: Final answer
    x = 72,612.60

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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.