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Finding the Fourth Proportional to 102,616.69, 141,609.69 and 57,295.44

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Solution

The fourth proportional to 102,616.69, 141,609.69 and 57,295.44 is: 79,066.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,616.69 : 141,609.69 = 57,295.44 : x
  2. Step 2: Convert to fraction form
    102,616.69/141,609.69 = 57,295.44/x
  3. Step 3: Cross multiply
    102,616.69x = 141,609.69 × 57,295.44
  4. Step 4: Simplify right side
    102,616.69x = 8,113,589,530.59
  5. Step 5: Solve for x
    x = 8,113,589,530.59/102,616.69
  6. Step 6: Final answer
    x = 79,066.96

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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.