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Finding the Fourth Proportional to 139,349.80, 208,903.20 and 94,832.20

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Solution

The fourth proportional to 139,349.80, 208,903.20 and 94,832.20 is: 142,165.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,349.80 : 208,903.20 = 94,832.20 : x
  2. Step 2: Convert to fraction form
    139,349.80/208,903.20 = 94,832.20/x
  3. Step 3: Cross multiply
    139,349.80x = 208,903.20 × 94,832.20
  4. Step 4: Simplify right side
    139,349.80x = 19,810,750,043.04
  5. Step 5: Solve for x
    x = 19,810,750,043.04/139,349.80
  6. Step 6: Final answer
    x = 142,165.62

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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.