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Finding the Fourth Proportional to 289,641,620.14, 399,719,796.51 and 179,668,762.54

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Solution

The fourth proportional to 289,641,620.14, 399,719,796.51 and 179,668,762.54 is: 247,951,800.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,641,620.14 : 399,719,796.51 = 179,668,762.54 : x
  2. Step 2: Convert to fraction form
    289,641,620.14/399,719,796.51 = 179,668,762.54/x
  3. Step 3: Cross multiply
    289,641,620.14x = 399,719,796.51 × 179,668,762.54
  4. Step 4: Simplify right side
    289,641,620.14x = 71,817,161,201,692,304
  5. Step 5: Solve for x
    x = 71,817,161,201,692,304/289,641,620.14
  6. Step 6: Final answer
    x = 247,951,800.46

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Why These Related Problems?

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