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Finding the Fourth Proportional to 67,681.52, 101,706.12 and 36,113.54

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Solution

The fourth proportional to 67,681.52, 101,706.12 and 36,113.54 is: 54,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,681.52 : 101,706.12 = 36,113.54 : x
  2. Step 2: Convert to fraction form
    67,681.52/101,706.12 = 36,113.54/x
  3. Step 3: Cross multiply
    67,681.52x = 101,706.12 × 36,113.54
  4. Step 4: Simplify right side
    67,681.52x = 3,672,968,032.86
  5. Step 5: Solve for x
    x = 3,672,968,032.86/67,681.52
  6. Step 6: Final answer
    x = 54,268.40

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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.