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Finding the Fourth Proportional to 291,956.40, 437,594.40 and 134,200.80

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Solution

The fourth proportional to 291,956.40, 437,594.40 and 134,200.80 is: 201,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,956.40 : 437,594.40 = 134,200.80 : x
  2. Step 2: Convert to fraction form
    291,956.40/437,594.40 = 134,200.80/x
  3. Step 3: Cross multiply
    291,956.40x = 437,594.40 × 134,200.80
  4. Step 4: Simplify right side
    291,956.40x = 58,725,518,555.52
  5. Step 5: Solve for x
    x = 58,725,518,555.52/291,956.40
  6. Step 6: Final answer
    x = 201,144.82

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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.