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Finding the Fourth Proportional to 92,977.82, 128,308.68 and 50,536.65

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Solution

The fourth proportional to 92,977.82, 128,308.68 and 50,536.65 is: 69,740.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,977.82 : 128,308.68 = 50,536.65 : x
  2. Step 2: Convert to fraction form
    92,977.82/128,308.68 = 50,536.65/x
  3. Step 3: Cross multiply
    92,977.82x = 128,308.68 × 50,536.65
  4. Step 4: Simplify right side
    92,977.82x = 6,484,290,853.12
  5. Step 5: Solve for x
    x = 6,484,290,853.12/92,977.82
  6. Step 6: Final answer
    x = 69,740.19

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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.