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Finding the Fourth Proportional to 92,884.48, 128,180.58 and 50,443

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Solution

The fourth proportional to 92,884.48, 128,180.58 and 50,443 is: 69,611.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,884.48 : 128,180.58 = 50,443 : x
  2. Step 2: Convert to fraction form
    92,884.48/128,180.58 = 50,443/x
  3. Step 3: Cross multiply
    92,884.48x = 128,180.58 × 50,443
  4. Step 4: Simplify right side
    92,884.48x = 6,465,812,996.94
  5. Step 5: Solve for x
    x = 6,465,812,996.94/92,884.48
  6. Step 6: Final answer
    x = 69,611.34

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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.