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Finding the Fourth Proportional to 356,533.44, 534,801.08 and 90,293.98

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Solution

The fourth proportional to 356,533.44, 534,801.08 and 90,293.98 is: 135,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,533.44 : 534,801.08 = 90,293.98 : x
  2. Step 2: Convert to fraction form
    356,533.44/534,801.08 = 90,293.98/x
  3. Step 3: Cross multiply
    356,533.44x = 534,801.08 × 90,293.98
  4. Step 4: Simplify right side
    356,533.44x = 48,289,318,021.50
  5. Step 5: Solve for x
    x = 48,289,318,021.50/356,533.44
  6. Step 6: Final answer
    x = 135,441.20

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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.