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Finding the Fourth Proportional to 170,358.88, 235,089.84 and 106,731.04

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Solution

The fourth proportional to 170,358.88, 235,089.84 and 106,731.04 is: 147,285.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,358.88 : 235,089.84 = 106,731.04 : x
  2. Step 2: Convert to fraction form
    170,358.88/235,089.84 = 106,731.04/x
  3. Step 3: Cross multiply
    170,358.88x = 235,089.84 × 106,731.04
  4. Step 4: Simplify right side
    170,358.88x = 25,091,383,116.63
  5. Step 5: Solve for x
    x = 25,091,383,116.63/170,358.88
  6. Step 6: Final answer
    x = 147,285.44

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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.