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Finding the Fourth Proportional to 74,062.84, 102,100.40 and 52,805.20

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Solution

The fourth proportional to 74,062.84, 102,100.40 and 52,805.20 is: 72,795.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,062.84 : 102,100.40 = 52,805.20 : x
  2. Step 2: Convert to fraction form
    74,062.84/102,100.40 = 52,805.20/x
  3. Step 3: Cross multiply
    74,062.84x = 102,100.40 × 52,805.20
  4. Step 4: Simplify right side
    74,062.84x = 5,391,432,042.08
  5. Step 5: Solve for x
    x = 5,391,432,042.08/74,062.84
  6. Step 6: Final answer
    x = 72,795.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.