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Finding the Fourth Proportional to 111,783.66, 167,699.99 and 48,613.58

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Solution

The fourth proportional to 111,783.66, 167,699.99 and 48,613.58 is: 72,931.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,783.66 : 167,699.99 = 48,613.58 : x
  2. Step 2: Convert to fraction form
    111,783.66/167,699.99 = 48,613.58/x
  3. Step 3: Cross multiply
    111,783.66x = 167,699.99 × 48,613.58
  4. Step 4: Simplify right side
    111,783.66x = 8,152,496,879.86
  5. Step 5: Solve for x
    x = 8,152,496,879.86/111,783.66
  6. Step 6: Final answer
    x = 72,931.02

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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.