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Finding the Fourth Proportional to 64,405.26, 88,874.79 and 35,722.20

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Solution

The fourth proportional to 64,405.26, 88,874.79 and 35,722.20 is: 49,294.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,405.26 : 88,874.79 = 35,722.20 : x
  2. Step 2: Convert to fraction form
    64,405.26/88,874.79 = 35,722.20/x
  3. Step 3: Cross multiply
    64,405.26x = 88,874.79 × 35,722.20
  4. Step 4: Simplify right side
    64,405.26x = 3,174,803,023.34
  5. Step 5: Solve for x
    x = 3,174,803,023.34/64,405.26
  6. Step 6: Final answer
    x = 49,294.16

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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.