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Finding the Fourth Proportional to 268,095.48, 402,201.06 and 90,598.56

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Solution

The fourth proportional to 268,095.48, 402,201.06 and 90,598.56 is: 135,917.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,095.48 : 402,201.06 = 90,598.56 : x
  2. Step 2: Convert to fraction form
    268,095.48/402,201.06 = 90,598.56/x
  3. Step 3: Cross multiply
    268,095.48x = 402,201.06 × 90,598.56
  4. Step 4: Simplify right side
    268,095.48x = 36,438,836,866.47
  5. Step 5: Solve for x
    x = 36,438,836,866.47/268,095.48
  6. Step 6: Final answer
    x = 135,917.39

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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.