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Finding the Fourth Proportional to 109,902,908.80, 164,936,270.40 and 41,878,460.80

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Solution

The fourth proportional to 109,902,908.80, 164,936,270.40 and 41,878,460.80 is: 62,848,901.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,902,908.80 : 164,936,270.40 = 41,878,460.80 : x
  2. Step 2: Convert to fraction form
    109,902,908.80/164,936,270.40 = 41,878,460.80/x
  3. Step 3: Cross multiply
    109,902,908.80x = 164,936,270.40 × 41,878,460.80
  4. Step 4: Simplify right side
    109,902,908.80x = 6,907,277,134,444,600
  5. Step 5: Solve for x
    x = 6,907,277,134,444,600/109,902,908.80
  6. Step 6: Final answer
    x = 62,848,901.91

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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.