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Finding the Fourth Proportional to 65,145.42, 97,732.49 and 37,078.70

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Solution

The fourth proportional to 65,145.42, 97,732.49 and 37,078.70 is: 55,626.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,145.42 : 97,732.49 = 37,078.70 : x
  2. Step 2: Convert to fraction form
    65,145.42/97,732.49 = 37,078.70/x
  3. Step 3: Cross multiply
    65,145.42x = 97,732.49 × 37,078.70
  4. Step 4: Simplify right side
    65,145.42x = 3,623,793,002.91
  5. Step 5: Solve for x
    x = 3,623,793,002.91/65,145.42
  6. Step 6: Final answer
    x = 55,626.21

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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.