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Finding the Fourth Proportional to 76,668.77, 114,964.26 and 35,080.13

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Solution

The fourth proportional to 76,668.77, 114,964.26 and 35,080.13 is: 52,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,668.77 : 114,964.26 = 35,080.13 : x
  2. Step 2: Convert to fraction form
    76,668.77/114,964.26 = 35,080.13/x
  3. Step 3: Cross multiply
    76,668.77x = 114,964.26 × 35,080.13
  4. Step 4: Simplify right side
    76,668.77x = 4,032,961,186.15
  5. Step 5: Solve for x
    x = 4,032,961,186.15/76,668.77
  6. Step 6: Final answer
    x = 52,602.40

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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.