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Finding the Fourth Proportional to 52,905.30, 74,171.10 and 52,905.30

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Solution

The fourth proportional to 52,905.30, 74,171.10 and 52,905.30 is: 74,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,905.30 : 74,171.10 = 52,905.30 : x
  2. Step 2: Convert to fraction form
    52,905.30/74,171.10 = 52,905.30/x
  3. Step 3: Cross multiply
    52,905.30x = 74,171.10 × 52,905.30
  4. Step 4: Simplify right side
    52,905.30x = 3,924,044,296.83
  5. Step 5: Solve for x
    x = 3,924,044,296.83/52,905.30
  6. Step 6: Final answer
    x = 74,171.10

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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.