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Finding the Fourth Proportional to 94,967.98, 130,969.11 and 81,534.94

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Solution

The fourth proportional to 94,967.98, 130,969.11 and 81,534.94 is: 112,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,967.98 : 130,969.11 = 81,534.94 : x
  2. Step 2: Convert to fraction form
    94,967.98/130,969.11 = 81,534.94/x
  3. Step 3: Cross multiply
    94,967.98x = 130,969.11 × 81,534.94
  4. Step 4: Simplify right side
    94,967.98x = 10,678,558,525.70
  5. Step 5: Solve for x
    x = 10,678,558,525.70/94,967.98
  6. Step 6: Final answer
    x = 112,443.78

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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.