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Finding the Fourth Proportional to 221,296.70, 331,944.45 and 94,854.95

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Solution

The fourth proportional to 221,296.70, 331,944.45 and 94,854.95 is: 142,282.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,296.70 : 331,944.45 = 94,854.95 : x
  2. Step 2: Convert to fraction form
    221,296.70/331,944.45 = 94,854.95/x
  3. Step 3: Cross multiply
    221,296.70x = 331,944.45 × 94,854.95
  4. Step 4: Simplify right side
    221,296.70x = 31,486,574,681.68
  5. Step 5: Solve for x
    x = 31,486,574,681.68/221,296.70
  6. Step 6: Final answer
    x = 142,282.17

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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.