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Finding the Fourth Proportional to 169,226.36, 253,839.88 and 42,866.63

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Solution

The fourth proportional to 169,226.36, 253,839.88 and 42,866.63 is: 64,300.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,226.36 : 253,839.88 = 42,866.63 : x
  2. Step 2: Convert to fraction form
    169,226.36/253,839.88 = 42,866.63/x
  3. Step 3: Cross multiply
    169,226.36x = 253,839.88 × 42,866.63
  4. Step 4: Simplify right side
    169,226.36x = 10,881,260,215.20
  5. Step 5: Solve for x
    x = 10,881,260,215.20/169,226.36
  6. Step 6: Final answer
    x = 64,300.03

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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.