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Finding the Fourth Proportional to 92,989.96, 128,326.89 and 50,548.39

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Solution

The fourth proportional to 92,989.96, 128,326.89 and 50,548.39 is: 69,757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,989.96 : 128,326.89 = 50,548.39 : x
  2. Step 2: Convert to fraction form
    92,989.96/128,326.89 = 50,548.39/x
  3. Step 3: Cross multiply
    92,989.96x = 128,326.89 × 50,548.39
  4. Step 4: Simplify right side
    92,989.96x = 6,486,717,683.21
  5. Step 5: Solve for x
    x = 6,486,717,683.21/92,989.96
  6. Step 6: Final answer
    x = 69,757.18

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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.