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Finding the Fourth Proportional to 245,135.76, 367,902.29 and 126,840.93

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Solution

The fourth proportional to 245,135.76, 367,902.29 and 126,840.93 is: 190,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,135.76 : 367,902.29 = 126,840.93 : x
  2. Step 2: Convert to fraction form
    245,135.76/367,902.29 = 126,840.93/x
  3. Step 3: Cross multiply
    245,135.76x = 367,902.29 × 126,840.93
  4. Step 4: Simplify right side
    245,135.76x = 46,665,068,612.73
  5. Step 5: Solve for x
    x = 46,665,068,612.73/245,135.76
  6. Step 6: Final answer
    x = 190,364.18

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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.