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Finding the Fourth Proportional to 361,764, 542,692.08 and 99,108

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Solution

The fourth proportional to 361,764, 542,692.08 and 99,108 is: 148,674.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,764 : 542,692.08 = 99,108 : x
  2. Step 2: Convert to fraction form
    361,764/542,692.08 = 99,108/x
  3. Step 3: Cross multiply
    361,764x = 542,692.08 × 99,108
  4. Step 4: Simplify right side
    361,764x = 53,785,126,664.64
  5. Step 5: Solve for x
    x = 53,785,126,664.64/361,764
  6. Step 6: Final answer
    x = 148,674.62

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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.