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Finding the Fourth Proportional to 99,796.79, 137,485.63 and 69,527.36

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Solution

The fourth proportional to 99,796.79, 137,485.63 and 69,527.36 is: 95,784.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,796.79 : 137,485.63 = 69,527.36 : x
  2. Step 2: Convert to fraction form
    99,796.79/137,485.63 = 69,527.36/x
  3. Step 3: Cross multiply
    99,796.79x = 137,485.63 × 69,527.36
  4. Step 4: Simplify right side
    99,796.79x = 9,559,012,891.84
  5. Step 5: Solve for x
    x = 9,559,012,891.84/99,796.79
  6. Step 6: Final answer
    x = 95,784.77

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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.