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Finding the Fourth Proportional to 367,595.65, 551,427.54 and 142,972.98

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Solution

The fourth proportional to 367,595.65, 551,427.54 and 142,972.98 is: 214,472.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,595.65 : 551,427.54 = 142,972.98 : x
  2. Step 2: Convert to fraction form
    367,595.65/551,427.54 = 142,972.98/x
  3. Step 3: Cross multiply
    367,595.65x = 551,427.54 × 142,972.98
  4. Step 4: Simplify right side
    367,595.65x = 78,839,238,647.87
  5. Step 5: Solve for x
    x = 78,839,238,647.87/367,595.65
  6. Step 6: Final answer
    x = 214,472.72

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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.