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Finding the Fourth Proportional to 92,774.86, 128,028.76 and 50,332.48

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Solution

The fourth proportional to 92,774.86, 128,028.76 and 50,332.48 is: 69,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,774.86 : 128,028.76 = 50,332.48 : x
  2. Step 2: Convert to fraction form
    92,774.86/128,028.76 = 50,332.48/x
  3. Step 3: Cross multiply
    92,774.86x = 128,028.76 × 50,332.48
  4. Step 4: Simplify right side
    92,774.86x = 6,444,004,556.22
  5. Step 5: Solve for x
    x = 6,444,004,556.22/92,774.86
  6. Step 6: Final answer
    x = 69,458.52

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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.