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Finding the Fourth Proportional to 92,800.36, 128,064.83 and 50,358.88

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Solution

The fourth proportional to 92,800.36, 128,064.83 and 50,358.88 is: 69,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,800.36 : 128,064.83 = 50,358.88 : x
  2. Step 2: Convert to fraction form
    92,800.36/128,064.83 = 50,358.88/x
  3. Step 3: Cross multiply
    92,800.36x = 128,064.83 × 50,358.88
  4. Step 4: Simplify right side
    92,800.36x = 6,449,201,406.19
  5. Step 5: Solve for x
    x = 6,449,201,406.19/92,800.36
  6. Step 6: Final answer
    x = 69,495.44

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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.