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Finding the Fourth Proportional to 118,668.76, 163,764.43 and 64,952.63

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Solution

The fourth proportional to 118,668.76, 163,764.43 and 64,952.63 is: 89,635.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,668.76 : 163,764.43 = 64,952.63 : x
  2. Step 2: Convert to fraction form
    118,668.76/163,764.43 = 64,952.63/x
  3. Step 3: Cross multiply
    118,668.76x = 163,764.43 × 64,952.63
  4. Step 4: Simplify right side
    118,668.76x = 10,636,929,610.13
  5. Step 5: Solve for x
    x = 10,636,929,610.13/118,668.76
  6. Step 6: Final answer
    x = 89,635.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.