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Finding the Fourth Proportional to 66,509.69, 99,764.54 and 44,366.31

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Solution

The fourth proportional to 66,509.69, 99,764.54 and 44,366.31 is: 66,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,509.69 : 99,764.54 = 44,366.31 : x
  2. Step 2: Convert to fraction form
    66,509.69/99,764.54 = 44,366.31/x
  3. Step 3: Cross multiply
    66,509.69x = 99,764.54 × 44,366.31
  4. Step 4: Simplify right side
    66,509.69x = 4,426,184,286.82
  5. Step 5: Solve for x
    x = 4,426,184,286.82/66,509.69
  6. Step 6: Final answer
    x = 66,549.47

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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.