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Finding the Fourth Proportional to 74,546.56, 102,551.16 and 65,432.44

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Solution

The fourth proportional to 74,546.56, 102,551.16 and 65,432.44 is: 90,013.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,546.56 : 102,551.16 = 65,432.44 : x
  2. Step 2: Convert to fraction form
    74,546.56/102,551.16 = 65,432.44/x
  3. Step 3: Cross multiply
    74,546.56x = 102,551.16 × 65,432.44
  4. Step 4: Simplify right side
    74,546.56x = 6,710,172,623.63
  5. Step 5: Solve for x
    x = 6,710,172,623.63/74,546.56
  6. Step 6: Final answer
    x = 90,013.18

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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.