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Finding the Fourth Proportional to 92,998, 128,336.92 and 50,556.24

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Solution

The fourth proportional to 92,998, 128,336.92 and 50,556.24 is: 69,767.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,998 : 128,336.92 = 50,556.24 : x
  2. Step 2: Convert to fraction form
    92,998/128,336.92 = 50,556.24/x
  3. Step 3: Cross multiply
    92,998x = 128,336.92 × 50,556.24
  4. Step 4: Simplify right side
    92,998x = 6,488,232,128.38
  5. Step 5: Solve for x
    x = 6,488,232,128.38/92,998
  6. Step 6: Final answer
    x = 69,767.44

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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.