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Finding the Fourth Proportional to 92,977.65, 128,310 and 50,536.28

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Solution

The fourth proportional to 92,977.65, 128,310 and 50,536.28 is: 69,740.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,977.65 : 128,310 = 50,536.28 : x
  2. Step 2: Convert to fraction form
    92,977.65/128,310 = 50,536.28/x
  3. Step 3: Cross multiply
    92,977.65x = 128,310 × 50,536.28
  4. Step 4: Simplify right side
    92,977.65x = 6,484,310,086.80
  5. Step 5: Solve for x
    x = 6,484,310,086.80/92,977.65
  6. Step 6: Final answer
    x = 69,740.52

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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.