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Finding the Fourth Proportional to 107,073, 160,619.40 and 28,187.64

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Solution

The fourth proportional to 107,073, 160,619.40 and 28,187.64 is: 42,284.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,073 : 160,619.40 = 28,187.64 : x
  2. Step 2: Convert to fraction form
    107,073/160,619.40 = 28,187.64/x
  3. Step 3: Cross multiply
    107,073x = 160,619.40 × 28,187.64
  4. Step 4: Simplify right side
    107,073x = 4,527,481,824.22
  5. Step 5: Solve for x
    x = 4,527,481,824.22/107,073
  6. Step 6: Final answer
    x = 42,284.07

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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.