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Finding the Fourth Proportional to 106,337.40, 159,467.70 and 53,729.40

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Solution

The fourth proportional to 106,337.40, 159,467.70 and 53,729.40 is: 80,574.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,337.40 : 159,467.70 = 53,729.40 : x
  2. Step 2: Convert to fraction form
    106,337.40/159,467.70 = 53,729.40/x
  3. Step 3: Cross multiply
    106,337.40x = 159,467.70 × 53,729.40
  4. Step 4: Simplify right side
    106,337.40x = 8,568,103,840.38
  5. Step 5: Solve for x
    x = 8,568,103,840.38/106,337.40
  6. Step 6: Final answer
    x = 80,574.70

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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.