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Finding the Fourth Proportional to 29,899,171.80, 41,972,214.60 and 29,899,171.80

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Solution

The fourth proportional to 29,899,171.80, 41,972,214.60 and 29,899,171.80 is: 41,972,214.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,899,171.80 : 41,972,214.60 = 29,899,171.80 : x
  2. Step 2: Convert to fraction form
    29,899,171.80/41,972,214.60 = 29,899,171.80/x
  3. Step 3: Cross multiply
    29,899,171.80x = 41,972,214.60 × 29,899,171.80
  4. Step 4: Simplify right side
    29,899,171.80x = 1,254,934,455,151,868.25
  5. Step 5: Solve for x
    x = 1,254,934,455,151,868.25/29,899,171.80
  6. Step 6: Final answer
    x = 41,972,214.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.