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Finding the Fourth Proportional to 70,686.54, 97,530.18 and 40,060.44

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Solution

The fourth proportional to 70,686.54, 97,530.18 and 40,060.44 is: 55,273.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,686.54 : 97,530.18 = 40,060.44 : x
  2. Step 2: Convert to fraction form
    70,686.54/97,530.18 = 40,060.44/x
  3. Step 3: Cross multiply
    70,686.54x = 97,530.18 × 40,060.44
  4. Step 4: Simplify right side
    70,686.54x = 3,907,101,924.08
  5. Step 5: Solve for x
    x = 3,907,101,924.08/70,686.54
  6. Step 6: Final answer
    x = 55,273.63

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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.