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Finding the Fourth Proportional to 74,554, 102,884.52 and 41,020

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Solution

The fourth proportional to 74,554, 102,884.52 and 41,020 is: 56,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,554 : 102,884.52 = 41,020 : x
  2. Step 2: Convert to fraction form
    74,554/102,884.52 = 41,020/x
  3. Step 3: Cross multiply
    74,554x = 102,884.52 × 41,020
  4. Step 4: Simplify right side
    74,554x = 4,220,323,010.40
  5. Step 5: Solve for x
    x = 4,220,323,010.40/74,554
  6. Step 6: Final answer
    x = 56,607.60

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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.