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Finding the Fourth Proportional to 250,667.84, 375,996.90 and 61,128.92

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Solution

The fourth proportional to 250,667.84, 375,996.90 and 61,128.92 is: 91,692.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,667.84 : 375,996.90 = 61,128.92 : x
  2. Step 2: Convert to fraction form
    250,667.84/375,996.90 = 61,128.92/x
  3. Step 3: Cross multiply
    250,667.84x = 375,996.90 × 61,128.92
  4. Step 4: Simplify right side
    250,667.84x = 22,984,284,420.35
  5. Step 5: Solve for x
    x = 22,984,284,420.35/250,667.84
  6. Step 6: Final answer
    x = 91,692.19

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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.