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Finding the Fourth Proportional to 166,943,999.60, 250,415,999.40 and 136,686,028.40

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Solution

The fourth proportional to 166,943,999.60, 250,415,999.40 and 136,686,028.40 is: 205,029,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,943,999.60 : 250,415,999.40 = 136,686,028.40 : x
  2. Step 2: Convert to fraction form
    166,943,999.60/250,415,999.40 = 136,686,028.40/x
  3. Step 3: Cross multiply
    166,943,999.60x = 250,415,999.40 × 136,686,028.40
  4. Step 4: Simplify right side
    166,943,999.60x = 34,228,368,405,802,784
  5. Step 5: Solve for x
    x = 34,228,368,405,802,784/166,943,999.60
  6. Step 6: Final answer
    x = 205,029,042.60

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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.