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Finding the Fourth Proportional to 162,778,848.80, 244,451,708.40 and 86,251,344.80

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Solution

The fourth proportional to 162,778,848.80, 244,451,708.40 and 86,251,344.80 is: 129,527,200.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,778,848.80 : 244,451,708.40 = 86,251,344.80 : x
  2. Step 2: Convert to fraction form
    162,778,848.80/244,451,708.40 = 86,251,344.80/x
  3. Step 3: Cross multiply
    162,778,848.80x = 244,451,708.40 × 86,251,344.80
  4. Step 4: Simplify right side
    162,778,848.80x = 21,084,288,588,157,456
  5. Step 5: Solve for x
    x = 21,084,288,588,157,456/162,778,848.80
  6. Step 6: Final answer
    x = 129,527,200.52

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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.