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Finding the Fourth Proportional to 342,381.60, 513,533.52 and 132,001.92

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Solution

The fourth proportional to 342,381.60, 513,533.52 and 132,001.92 is: 197,987.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,381.60 : 513,533.52 = 132,001.92 : x
  2. Step 2: Convert to fraction form
    342,381.60/513,533.52 = 132,001.92/x
  3. Step 3: Cross multiply
    342,381.60x = 513,533.52 × 132,001.92
  4. Step 4: Simplify right side
    342,381.60x = 67,787,410,624.36
  5. Step 5: Solve for x
    x = 67,787,410,624.36/342,381.60
  6. Step 6: Final answer
    x = 197,987.89

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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.