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Finding the Fourth Proportional to 476,665.96, 715,011.90 and 144,241.96

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Solution

The fourth proportional to 476,665.96, 715,011.90 and 144,241.96 is: 216,366.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,665.96 : 715,011.90 = 144,241.96 : x
  2. Step 2: Convert to fraction form
    476,665.96/715,011.90 = 144,241.96/x
  3. Step 3: Cross multiply
    476,665.96x = 715,011.90 × 144,241.96
  4. Step 4: Simplify right side
    476,665.96x = 103,134,717,879.32
  5. Step 5: Solve for x
    x = 103,134,717,879.32/476,665.96
  6. Step 6: Final answer
    x = 216,366.86

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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.