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Finding the Fourth Proportional to 77,953.91, 107,577.54 and 43,964.01

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Solution

The fourth proportional to 77,953.91, 107,577.54 and 43,964.01 is: 60,670.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,953.91 : 107,577.54 = 43,964.01 : x
  2. Step 2: Convert to fraction form
    77,953.91/107,577.54 = 43,964.01/x
  3. Step 3: Cross multiply
    77,953.91x = 107,577.54 × 43,964.01
  4. Step 4: Simplify right side
    77,953.91x = 4,729,540,044.34
  5. Step 5: Solve for x
    x = 4,729,540,044.34/77,953.91
  6. Step 6: Final answer
    x = 60,670.98

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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.