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Finding the Fourth Proportional to 170,486.10, 255,729.15 and 75,694.01

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Solution

The fourth proportional to 170,486.10, 255,729.15 and 75,694.01 is: 113,541.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,486.10 : 255,729.15 = 75,694.01 : x
  2. Step 2: Convert to fraction form
    170,486.10/255,729.15 = 75,694.01/x
  3. Step 3: Cross multiply
    170,486.10x = 255,729.15 × 75,694.01
  4. Step 4: Simplify right side
    170,486.10x = 19,357,163,558.75
  5. Step 5: Solve for x
    x = 19,357,163,558.75/170,486.10
  6. Step 6: Final answer
    x = 113,541.01

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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.