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Finding the Fourth Proportional to 92,800.31, 128,064.77 and 50,358.83

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Solution

The fourth proportional to 92,800.31, 128,064.77 and 50,358.83 is: 69,495.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,800.31 : 128,064.77 = 50,358.83 : x
  2. Step 2: Convert to fraction form
    92,800.31/128,064.77 = 50,358.83/x
  3. Step 3: Cross multiply
    92,800.31x = 128,064.77 × 50,358.83
  4. Step 4: Simplify right side
    92,800.31x = 6,449,191,089.30
  5. Step 5: Solve for x
    x = 6,449,191,089.30/92,800.31
  6. Step 6: Final answer
    x = 69,495.37

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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.