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Finding the Fourth Proportional to 170,103.04, 255,180.48 and 86,968.96

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Solution

The fourth proportional to 170,103.04, 255,180.48 and 86,968.96 is: 130,466.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,103.04 : 255,180.48 = 86,968.96 : x
  2. Step 2: Convert to fraction form
    170,103.04/255,180.48 = 86,968.96/x
  3. Step 3: Cross multiply
    170,103.04x = 255,180.48 × 86,968.96
  4. Step 4: Simplify right side
    170,103.04x = 22,192,780,957.90
  5. Step 5: Solve for x
    x = 22,192,780,957.90/170,103.04
  6. Step 6: Final answer
    x = 130,466.69

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1.5x scale

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.