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Finding the Fourth Proportional to 92,906.84, 128,089.37 and 67,043.64

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Solution

The fourth proportional to 92,906.84, 128,089.37 and 67,043.64 is: 92,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,906.84 : 128,089.37 = 67,043.64 : x
  2. Step 2: Convert to fraction form
    92,906.84/128,089.37 = 67,043.64/x
  3. Step 3: Cross multiply
    92,906.84x = 128,089.37 × 67,043.64
  4. Step 4: Simplify right side
    92,906.84x = 8,587,577,777.72
  5. Step 5: Solve for x
    x = 8,587,577,777.72/92,906.84
  6. Step 6: Final answer
    x = 92,432.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.