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Finding the Fourth Proportional to 97,055.45, 145,597.88 and 30,489.33

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Solution

The fourth proportional to 97,055.45, 145,597.88 and 30,489.33 is: 45,738.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,055.45 : 145,597.88 = 30,489.33 : x
  2. Step 2: Convert to fraction form
    97,055.45/145,597.88 = 30,489.33/x
  3. Step 3: Cross multiply
    97,055.45x = 145,597.88 × 30,489.33
  4. Step 4: Simplify right side
    97,055.45x = 4,439,181,810.62
  5. Step 5: Solve for x
    x = 4,439,181,810.62/97,055.45
  6. Step 6: Final answer
    x = 45,738.61

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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.