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Finding the Fourth Proportional to 70,964.52, 106,326.29 and 42,825.45

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Solution

The fourth proportional to 70,964.52, 106,326.29 and 42,825.45 is: 64,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,964.52 : 106,326.29 = 42,825.45 : x
  2. Step 2: Convert to fraction form
    70,964.52/106,326.29 = 42,825.45/x
  3. Step 3: Cross multiply
    70,964.52x = 106,326.29 × 42,825.45
  4. Step 4: Simplify right side
    70,964.52x = 4,553,471,216.08
  5. Step 5: Solve for x
    x = 4,553,471,216.08/70,964.52
  6. Step 6: Final answer
    x = 64,165.46

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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.