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Finding the Fourth Proportional to 92,847.66, 128,130.39 and 50,406.42

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Solution

The fourth proportional to 92,847.66, 128,130.39 and 50,406.42 is: 69,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,847.66 : 128,130.39 = 50,406.42 : x
  2. Step 2: Convert to fraction form
    92,847.66/128,130.39 = 50,406.42/x
  3. Step 3: Cross multiply
    92,847.66x = 128,130.39 × 50,406.42
  4. Step 4: Simplify right side
    92,847.66x = 6,458,594,253.10
  5. Step 5: Solve for x
    x = 6,458,594,253.10/92,847.66
  6. Step 6: Final answer
    x = 69,561.20

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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.