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Finding the Fourth Proportional to 355,109.70, 532,664.55 and 222,399.30

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Solution

The fourth proportional to 355,109.70, 532,664.55 and 222,399.30 is: 333,598.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,109.70 : 532,664.55 = 222,399.30 : x
  2. Step 2: Convert to fraction form
    355,109.70/532,664.55 = 222,399.30/x
  3. Step 3: Cross multiply
    355,109.70x = 532,664.55 × 222,399.30
  4. Step 4: Simplify right side
    355,109.70x = 118,464,223,054.82
  5. Step 5: Solve for x
    x = 118,464,223,054.82/355,109.70
  6. Step 6: Final answer
    x = 333,598.95

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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.