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Finding the Fourth Proportional to 70,840.86, 106,305.03 and 41,316.36

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Solution

The fourth proportional to 70,840.86, 106,305.03 and 41,316.36 is: 62,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,840.86 : 106,305.03 = 41,316.36 : x
  2. Step 2: Convert to fraction form
    70,840.86/106,305.03 = 41,316.36/x
  3. Step 3: Cross multiply
    70,840.86x = 106,305.03 × 41,316.36
  4. Step 4: Simplify right side
    70,840.86x = 4,392,136,889.29
  5. Step 5: Solve for x
    x = 4,392,136,889.29/70,840.86
  6. Step 6: Final answer
    x = 62,000.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.