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Finding the Fourth Proportional to 113,325,978.20, 169,988,967.30 and 36,703,995.80

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Solution

The fourth proportional to 113,325,978.20, 169,988,967.30 and 36,703,995.80 is: 55,055,993.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,325,978.20 : 169,988,967.30 = 36,703,995.80 : x
  2. Step 2: Convert to fraction form
    113,325,978.20/169,988,967.30 = 36,703,995.80/x
  3. Step 3: Cross multiply
    113,325,978.20x = 169,988,967.30 × 36,703,995.80
  4. Step 4: Simplify right side
    113,325,978.20x = 6,239,274,341,825,537
  5. Step 5: Solve for x
    x = 6,239,274,341,825,537/113,325,978.20
  6. Step 6: Final answer
    x = 55,055,993.70

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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.