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Finding the Fourth Proportional to 92,900.32, 128,201.88 and 50,458.48

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Solution

The fourth proportional to 92,900.32, 128,201.88 and 50,458.48 is: 69,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,900.32 : 128,201.88 = 50,458.48 : x
  2. Step 2: Convert to fraction form
    92,900.32/128,201.88 = 50,458.48/x
  3. Step 3: Cross multiply
    92,900.32x = 128,201.88 × 50,458.48
  4. Step 4: Simplify right side
    92,900.32x = 6,468,871,997.94
  5. Step 5: Solve for x
    x = 6,468,871,997.94/92,900.32
  6. Step 6: Final answer
    x = 69,632.40

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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.