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Finding the Fourth Proportional to 89,130, 133,528.14 and 44,704.74

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Solution

The fourth proportional to 89,130, 133,528.14 and 44,704.74 is: 66,973.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,130 : 133,528.14 = 44,704.74 : x
  2. Step 2: Convert to fraction form
    89,130/133,528.14 = 44,704.74/x
  3. Step 3: Cross multiply
    89,130x = 133,528.14 × 44,704.74
  4. Step 4: Simplify right side
    89,130x = 5,969,340,781.38
  5. Step 5: Solve for x
    x = 5,969,340,781.38/89,130
  6. Step 6: Final answer
    x = 66,973.42

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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.