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Finding the Fourth Proportional to 72,935.44, 109,506.84 and 69,594.64

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Solution

The fourth proportional to 72,935.44, 109,506.84 and 69,594.64 is: 104,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,935.44 : 109,506.84 = 69,594.64 : x
  2. Step 2: Convert to fraction form
    72,935.44/109,506.84 = 69,594.64/x
  3. Step 3: Cross multiply
    72,935.44x = 109,506.84 × 69,594.64
  4. Step 4: Simplify right side
    72,935.44x = 7,621,089,107.34
  5. Step 5: Solve for x
    x = 7,621,089,107.34/72,935.44
  6. Step 6: Final answer
    x = 104,490.89

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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.