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Finding the Fourth Proportional to 90,354.96, 124,692.57 and 50,064.93

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Solution

The fourth proportional to 90,354.96, 124,692.57 and 50,064.93 is: 69,091.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,354.96 : 124,692.57 = 50,064.93 : x
  2. Step 2: Convert to fraction form
    90,354.96/124,692.57 = 50,064.93/x
  3. Step 3: Cross multiply
    90,354.96x = 124,692.57 × 50,064.93
  4. Step 4: Simplify right side
    90,354.96x = 6,242,724,788.57
  5. Step 5: Solve for x
    x = 6,242,724,788.57/90,354.96
  6. Step 6: Final answer
    x = 69,091.11

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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.