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Finding the Fourth Proportional to 104,485.34, 144,185.34 and 59,165.80

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Solution

The fourth proportional to 104,485.34, 144,185.34 and 59,165.80 is: 81,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,485.34 : 144,185.34 = 59,165.80 : x
  2. Step 2: Convert to fraction form
    104,485.34/144,185.34 = 59,165.80/x
  3. Step 3: Cross multiply
    104,485.34x = 144,185.34 × 59,165.80
  4. Step 4: Simplify right side
    104,485.34x = 8,530,840,989.37
  5. Step 5: Solve for x
    x = 8,530,840,989.37/104,485.34
  6. Step 6: Final answer
    x = 81,646.30

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1.5x scale

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.