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Finding the Fourth Proportional to 92,998.88, 128,337.72 and 50,556.32

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Solution

The fourth proportional to 92,998.88, 128,337.72 and 50,556.32 is: 69,767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,998.88 : 128,337.72 = 50,556.32 : x
  2. Step 2: Convert to fraction form
    92,998.88/128,337.72 = 50,556.32/x
  3. Step 3: Cross multiply
    92,998.88x = 128,337.72 × 50,556.32
  4. Step 4: Simplify right side
    92,998.88x = 6,488,282,840.39
  5. Step 5: Solve for x
    x = 6,488,282,840.39/92,998.88
  6. Step 6: Final answer
    x = 69,767.32

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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.