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Finding the Fourth Proportional to 372,922.60, 559,383.90 and 162,970.60

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Solution

The fourth proportional to 372,922.60, 559,383.90 and 162,970.60 is: 244,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,922.60 : 559,383.90 = 162,970.60 : x
  2. Step 2: Convert to fraction form
    372,922.60/559,383.90 = 162,970.60/x
  3. Step 3: Cross multiply
    372,922.60x = 559,383.90 × 162,970.60
  4. Step 4: Simplify right side
    372,922.60x = 91,163,129,813.34
  5. Step 5: Solve for x
    x = 91,163,129,813.34/372,922.60
  6. Step 6: Final answer
    x = 244,455.90

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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.