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Finding the Fourth Proportional to 73,034.55, 109,594.65 and 30,912.02

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Solution

The fourth proportional to 73,034.55, 109,594.65 and 30,912.02 is: 46,386.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,034.55 : 109,594.65 = 30,912.02 : x
  2. Step 2: Convert to fraction form
    73,034.55/109,594.65 = 30,912.02/x
  3. Step 3: Cross multiply
    73,034.55x = 109,594.65 × 30,912.02
  4. Step 4: Simplify right side
    73,034.55x = 3,387,791,464.72
  5. Step 5: Solve for x
    x = 3,387,791,464.72/73,034.55
  6. Step 6: Final answer
    x = 46,386.15

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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.