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Finding the Fourth Proportional to 256,300.17, 353,692.80 and 141,586.68

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Solution

The fourth proportional to 256,300.17, 353,692.80 and 141,586.68 is: 195,388.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,300.17 : 353,692.80 = 141,586.68 : x
  2. Step 2: Convert to fraction form
    256,300.17/353,692.80 = 141,586.68/x
  3. Step 3: Cross multiply
    256,300.17x = 353,692.80 × 141,586.68
  4. Step 4: Simplify right side
    256,300.17x = 50,078,189,291.90
  5. Step 5: Solve for x
    x = 50,078,189,291.90/256,300.17
  6. Step 6: Final answer
    x = 195,388.83

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1.5x scale

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.