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Finding the Fourth Proportional to 69,014.66, 103,653.20 and 42,901.88

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Solution

The fourth proportional to 69,014.66, 103,653.20 and 42,901.88 is: 64,434.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,014.66 : 103,653.20 = 42,901.88 : x
  2. Step 2: Convert to fraction form
    69,014.66/103,653.20 = 42,901.88/x
  3. Step 3: Cross multiply
    69,014.66x = 103,653.20 × 42,901.88
  4. Step 4: Simplify right side
    69,014.66x = 4,446,916,737.00
  5. Step 5: Solve for x
    x = 4,446,916,737.00/69,014.66
  6. Step 6: Final answer
    x = 64,434.38

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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.