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Finding the Fourth Proportional to 66,551.94, 99,946.89 and 63,876.30

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Solution

The fourth proportional to 66,551.94, 99,946.89 and 63,876.30 is: 95,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,551.94 : 99,946.89 = 63,876.30 : x
  2. Step 2: Convert to fraction form
    66,551.94/99,946.89 = 63,876.30/x
  3. Step 3: Cross multiply
    66,551.94x = 99,946.89 × 63,876.30
  4. Step 4: Simplify right side
    66,551.94x = 6,384,237,529.71
  5. Step 5: Solve for x
    x = 6,384,237,529.71/66,551.94
  6. Step 6: Final answer
    x = 95,928.65

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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.