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Finding the Fourth Proportional to 65,668.55, 98,594.06 and 45,630.84

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Solution

The fourth proportional to 65,668.55, 98,594.06 and 45,630.84 is: 68,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,668.55 : 98,594.06 = 45,630.84 : x
  2. Step 2: Convert to fraction form
    65,668.55/98,594.06 = 45,630.84/x
  3. Step 3: Cross multiply
    65,668.55x = 98,594.06 × 45,630.84
  4. Step 4: Simplify right side
    65,668.55x = 4,498,930,175.06
  5. Step 5: Solve for x
    x = 4,498,930,175.06/65,668.55
  6. Step 6: Final answer
    x = 68,509.66

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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.