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Finding the Fourth Proportional to 72,703.99, 108,977.55 and 35,184.79

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Solution

The fourth proportional to 72,703.99, 108,977.55 and 35,184.79 is: 52,739.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,703.99 : 108,977.55 = 35,184.79 : x
  2. Step 2: Convert to fraction form
    72,703.99/108,977.55 = 35,184.79/x
  3. Step 3: Cross multiply
    72,703.99x = 108,977.55 × 35,184.79
  4. Step 4: Simplify right side
    72,703.99x = 3,834,352,211.46
  5. Step 5: Solve for x
    x = 3,834,352,211.46/72,703.99
  6. Step 6: Final answer
    x = 52,739.23

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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.