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Finding the Fourth Proportional to 223,978,956.56, 309,109,359.82 and 123,527,039.58

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Solution

The fourth proportional to 223,978,956.56, 309,109,359.82 and 123,527,039.58 is: 170,477,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,978,956.56 : 309,109,359.82 = 123,527,039.58 : x
  2. Step 2: Convert to fraction form
    223,978,956.56/309,109,359.82 = 123,527,039.58/x
  3. Step 3: Cross multiply
    223,978,956.56x = 309,109,359.82 × 123,527,039.58
  4. Step 4: Simplify right side
    223,978,956.56x = 38,183,364,125,033,600
  5. Step 5: Solve for x
    x = 38,183,364,125,033,600/223,978,956.56
  6. Step 6: Final answer
    x = 170,477,462.31

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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.