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Finding the Fourth Proportional to 68,048.28, 102,066.84 and 43,015.32

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Solution

The fourth proportional to 68,048.28, 102,066.84 and 43,015.32 is: 64,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,048.28 : 102,066.84 = 43,015.32 : x
  2. Step 2: Convert to fraction form
    68,048.28/102,066.84 = 43,015.32/x
  3. Step 3: Cross multiply
    68,048.28x = 102,066.84 × 43,015.32
  4. Step 4: Simplify right side
    68,048.28x = 4,390,437,783.99
  5. Step 5: Solve for x
    x = 4,390,437,783.99/68,048.28
  6. Step 6: Final answer
    x = 64,519.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.