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Finding the Fourth Proportional to 283,898.62, 425,890.62 and 91,708.91

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Solution

The fourth proportional to 283,898.62, 425,890.62 and 91,708.91 is: 137,577.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,898.62 : 425,890.62 = 91,708.91 : x
  2. Step 2: Convert to fraction form
    283,898.62/425,890.62 = 91,708.91/x
  3. Step 3: Cross multiply
    283,898.62x = 425,890.62 × 91,708.91
  4. Step 4: Simplify right side
    283,898.62x = 39,057,964,539.42
  5. Step 5: Solve for x
    x = 39,057,964,539.42/283,898.62
  6. Step 6: Final answer
    x = 137,577.16

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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.