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Finding the Fourth Proportional to 92,899.70, 128,202.26 and 50,458.25

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Solution

The fourth proportional to 92,899.70, 128,202.26 and 50,458.25 is: 69,632.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,899.70 : 128,202.26 = 50,458.25 : x
  2. Step 2: Convert to fraction form
    92,899.70/128,202.26 = 50,458.25/x
  3. Step 3: Cross multiply
    92,899.70x = 128,202.26 × 50,458.25
  4. Step 4: Simplify right side
    92,899.70x = 6,468,860,792.34
  5. Step 5: Solve for x
    x = 6,468,860,792.34/92,899.70
  6. Step 6: Final answer
    x = 69,632.75

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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.