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Finding the Fourth Proportional to 368,575.04, 552,644.40 and 143,672.92

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Solution

The fourth proportional to 368,575.04, 552,644.40 and 143,672.92 is: 215,424.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,575.04 : 552,644.40 = 143,672.92 : x
  2. Step 2: Convert to fraction form
    368,575.04/552,644.40 = 143,672.92/x
  3. Step 3: Cross multiply
    368,575.04x = 552,644.40 × 143,672.92
  4. Step 4: Simplify right side
    368,575.04x = 79,400,034,669.65
  5. Step 5: Solve for x
    x = 79,400,034,669.65/368,575.04
  6. Step 6: Final answer
    x = 215,424.34

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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.