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Finding the Fourth Proportional to 387,097.01, 534,202.34 and 212,669.47

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Solution

The fourth proportional to 387,097.01, 534,202.34 and 212,669.47 is: 293,488.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,097.01 : 534,202.34 = 212,669.47 : x
  2. Step 2: Convert to fraction form
    387,097.01/534,202.34 = 212,669.47/x
  3. Step 3: Cross multiply
    387,097.01x = 534,202.34 × 212,669.47
  4. Step 4: Simplify right side
    387,097.01x = 113,608,526,121.71
  5. Step 5: Solve for x
    x = 113,608,526,121.71/387,097.01
  6. Step 6: Final answer
    x = 293,488.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.