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Finding the Fourth Proportional to 572,568.80, 858,853.20 and 146,103.80

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Solution

The fourth proportional to 572,568.80, 858,853.20 and 146,103.80 is: 219,155.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,568.80 : 858,853.20 = 146,103.80 : x
  2. Step 2: Convert to fraction form
    572,568.80/858,853.20 = 146,103.80/x
  3. Step 3: Cross multiply
    572,568.80x = 858,853.20 × 146,103.80
  4. Step 4: Simplify right side
    572,568.80x = 125,481,716,162.16
  5. Step 5: Solve for x
    x = 125,481,716,162.16/572,568.80
  6. Step 6: Final answer
    x = 219,155.70

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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.