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Finding the Fourth Proportional to 135,994.32, 203,554.92 and 72,656.16

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Solution

The fourth proportional to 135,994.32, 203,554.92 and 72,656.16 is: 108,751.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,994.32 : 203,554.92 = 72,656.16 : x
  2. Step 2: Convert to fraction form
    135,994.32/203,554.92 = 72,656.16/x
  3. Step 3: Cross multiply
    135,994.32x = 203,554.92 × 72,656.16
  4. Step 4: Simplify right side
    135,994.32x = 14,789,518,836.31
  5. Step 5: Solve for x
    x = 14,789,518,836.31/135,994.32
  6. Step 6: Final answer
    x = 108,751.00

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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.