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Finding the Fourth Proportional to 201,326,302.36, 301,894,039.56 and 70,122,819.32

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Solution

The fourth proportional to 201,326,302.36, 301,894,039.56 and 70,122,819.32 is: 105,150,995.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,326,302.36 : 301,894,039.56 = 70,122,819.32 : x
  2. Step 2: Convert to fraction form
    201,326,302.36/301,894,039.56 = 70,122,819.32/x
  3. Step 3: Cross multiply
    201,326,302.36x = 301,894,039.56 × 70,122,819.32
  4. Step 4: Simplify right side
    201,326,302.36x = 21,169,661,189,850,812
  5. Step 5: Solve for x
    x = 21,169,661,189,850,812/201,326,302.36
  6. Step 6: Final answer
    x = 105,150,995.88

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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.