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Finding the Fourth Proportional to 90,360.65, 124,692.05 and 50,072.06

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Solution

The fourth proportional to 90,360.65, 124,692.05 and 50,072.06 is: 69,096.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,360.65 : 124,692.05 = 50,072.06 : x
  2. Step 2: Convert to fraction form
    90,360.65/124,692.05 = 50,072.06/x
  3. Step 3: Cross multiply
    90,360.65x = 124,692.05 × 50,072.06
  4. Step 4: Simplify right side
    90,360.65x = 6,243,587,310.84
  5. Step 5: Solve for x
    x = 6,243,587,310.84/90,360.65
  6. Step 6: Final answer
    x = 69,096.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.