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Finding the Fourth Proportional to 70,121.54, 105,094.92 and 35,071.22

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Solution

The fourth proportional to 70,121.54, 105,094.92 and 35,071.22 is: 52,563.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,121.54 : 105,094.92 = 35,071.22 : x
  2. Step 2: Convert to fraction form
    70,121.54/105,094.92 = 35,071.22/x
  3. Step 3: Cross multiply
    70,121.54x = 105,094.92 × 35,071.22
  4. Step 4: Simplify right side
    70,121.54x = 3,685,807,060.20
  5. Step 5: Solve for x
    x = 3,685,807,060.20/70,121.54
  6. Step 6: Final answer
    x = 52,563.12

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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.