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Finding the Fourth Proportional to 79,908.89, 110,240.64 and 56,051.15

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Solution

The fourth proportional to 79,908.89, 110,240.64 and 56,051.15 is: 77,327.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,908.89 : 110,240.64 = 56,051.15 : x
  2. Step 2: Convert to fraction form
    79,908.89/110,240.64 = 56,051.15/x
  3. Step 3: Cross multiply
    79,908.89x = 110,240.64 × 56,051.15
  4. Step 4: Simplify right side
    79,908.89x = 6,179,114,097.53
  5. Step 5: Solve for x
    x = 6,179,114,097.53/79,908.89
  6. Step 6: Final answer
    x = 77,327.00

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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.