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Finding the Fourth Proportional to 67,810,051.80, 101,715,077.70 and 21,751,831.80

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Solution

The fourth proportional to 67,810,051.80, 101,715,077.70 and 21,751,831.80 is: 32,627,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,810,051.80 : 101,715,077.70 = 21,751,831.80 : x
  2. Step 2: Convert to fraction form
    67,810,051.80/101,715,077.70 = 21,751,831.80/x
  3. Step 3: Cross multiply
    67,810,051.80x = 101,715,077.70 × 21,751,831.80
  4. Step 4: Simplify right side
    67,810,051.80x = 2,212,489,261,654,331
  5. Step 5: Solve for x
    x = 2,212,489,261,654,331/67,810,051.80
  6. Step 6: Final answer
    x = 32,627,747.70

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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.