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Finding the Fourth Proportional to 215,898.90, 301,864.80 and 215,898.90

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Solution

The fourth proportional to 215,898.90, 301,864.80 and 215,898.90 is: 301,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,898.90 : 301,864.80 = 215,898.90 : x
  2. Step 2: Convert to fraction form
    215,898.90/301,864.80 = 215,898.90/x
  3. Step 3: Cross multiply
    215,898.90x = 301,864.80 × 215,898.90
  4. Step 4: Simplify right side
    215,898.90x = 65,172,278,268.72
  5. Step 5: Solve for x
    x = 65,172,278,268.72/215,898.90
  6. Step 6: Final answer
    x = 301,864.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.