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Finding the Fourth Proportional to 293,187.60, 439,927.20 and 115,700.40

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Solution

The fourth proportional to 293,187.60, 439,927.20 and 115,700.40 is: 173,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,187.60 : 439,927.20 = 115,700.40 : x
  2. Step 2: Convert to fraction form
    293,187.60/439,927.20 = 115,700.40/x
  3. Step 3: Cross multiply
    293,187.60x = 439,927.20 × 115,700.40
  4. Step 4: Simplify right side
    293,187.60x = 50,899,753,010.88
  5. Step 5: Solve for x
    x = 50,899,753,010.88/293,187.60
  6. Step 6: Final answer
    x = 173,608.14

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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.