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Finding the Fourth Proportional to 74,496.10, 102,805.03 and 40,504.92

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Solution

The fourth proportional to 74,496.10, 102,805.03 and 40,504.92 is: 55,897.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,496.10 : 102,805.03 = 40,504.92 : x
  2. Step 2: Convert to fraction form
    74,496.10/102,805.03 = 40,504.92/x
  3. Step 3: Cross multiply
    74,496.10x = 102,805.03 × 40,504.92
  4. Step 4: Simplify right side
    74,496.10x = 4,164,109,001.72
  5. Step 5: Solve for x
    x = 4,164,109,001.72/74,496.10
  6. Step 6: Final answer
    x = 55,897.01

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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.