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Finding the Fourth Proportional to 66,251.52, 99,246.06 and 42,894.36

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Solution

The fourth proportional to 66,251.52, 99,246.06 and 42,894.36 is: 64,256.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,251.52 : 99,246.06 = 42,894.36 : x
  2. Step 2: Convert to fraction form
    66,251.52/99,246.06 = 42,894.36/x
  3. Step 3: Cross multiply
    66,251.52x = 99,246.06 × 42,894.36
  4. Step 4: Simplify right side
    66,251.52x = 4,257,096,226.22
  5. Step 5: Solve for x
    x = 4,257,096,226.22/66,251.52
  6. Step 6: Final answer
    x = 64,256.58

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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.