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Finding the Fourth Proportional to 395,979,652.80, 594,111,196.80 and 166,019,227.20

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Solution

The fourth proportional to 395,979,652.80, 594,111,196.80 and 166,019,227.20 is: 249,088,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,979,652.80 : 594,111,196.80 = 166,019,227.20 : x
  2. Step 2: Convert to fraction form
    395,979,652.80/594,111,196.80 = 166,019,227.20/x
  3. Step 3: Cross multiply
    395,979,652.80x = 594,111,196.80 × 166,019,227.20
  4. Step 4: Simplify right side
    395,979,652.80x = 98,633,881,763,603,104
  5. Step 5: Solve for x
    x = 98,633,881,763,603,104/395,979,652.80
  6. Step 6: Final answer
    x = 249,088,257.61

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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.