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Finding the Fourth Proportional to 111,799.76, 167,699.64 and 28,693.76

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Solution

The fourth proportional to 111,799.76, 167,699.64 and 28,693.76 is: 43,040.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,799.76 : 167,699.64 = 28,693.76 : x
  2. Step 2: Convert to fraction form
    111,799.76/167,699.64 = 28,693.76/x
  3. Step 3: Cross multiply
    111,799.76x = 167,699.64 × 28,693.76
  4. Step 4: Simplify right side
    111,799.76x = 4,811,933,222.25
  5. Step 5: Solve for x
    x = 4,811,933,222.25/111,799.76
  6. Step 6: Final answer
    x = 43,040.64

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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.