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Finding the Fourth Proportional to 170,618.52, 255,818.28 and 70,847.58

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Solution

The fourth proportional to 170,618.52, 255,818.28 and 70,847.58 is: 106,225.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,618.52 : 255,818.28 = 70,847.58 : x
  2. Step 2: Convert to fraction form
    170,618.52/255,818.28 = 70,847.58/x
  3. Step 3: Cross multiply
    170,618.52x = 255,818.28 × 70,847.58
  4. Step 4: Simplify right side
    170,618.52x = 18,124,106,057.76
  5. Step 5: Solve for x
    x = 18,124,106,057.76/170,618.52
  6. Step 6: Final answer
    x = 106,225.90

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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.