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Finding the Fourth Proportional to 291,166.20, 436,601.60 and 133,259.40

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Solution

The fourth proportional to 291,166.20, 436,601.60 and 133,259.40 is: 199,821.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,166.20 : 436,601.60 = 133,259.40 : x
  2. Step 2: Convert to fraction form
    291,166.20/436,601.60 = 133,259.40/x
  3. Step 3: Cross multiply
    291,166.20x = 436,601.60 × 133,259.40
  4. Step 4: Simplify right side
    291,166.20x = 58,181,267,255.04
  5. Step 5: Solve for x
    x = 58,181,267,255.04/291,166.20
  6. Step 6: Final answer
    x = 199,821.50

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1.5x scale

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.