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Finding the Fourth Proportional to 92,801.90, 128,066.95 and 50,360.42

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Solution

The fourth proportional to 92,801.90, 128,066.95 and 50,360.42 is: 69,497.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,801.90 : 128,066.95 = 50,360.42 : x
  2. Step 2: Convert to fraction form
    92,801.90/128,066.95 = 50,360.42/x
  3. Step 3: Cross multiply
    92,801.90x = 128,066.95 × 50,360.42
  4. Step 4: Simplify right side
    92,801.90x = 6,449,505,390.12
  5. Step 5: Solve for x
    x = 6,449,505,390.12/92,801.90
  6. Step 6: Final answer
    x = 69,497.56

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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.