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Finding the Fourth Proportional to 268,225.68, 370,173.60 and 172,930.80

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Solution

The fourth proportional to 268,225.68, 370,173.60 and 172,930.80 is: 238,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,225.68 : 370,173.60 = 172,930.80 : x
  2. Step 2: Convert to fraction form
    268,225.68/370,173.60 = 172,930.80/x
  3. Step 3: Cross multiply
    268,225.68x = 370,173.60 × 172,930.80
  4. Step 4: Simplify right side
    268,225.68x = 64,014,416,786.88
  5. Step 5: Solve for x
    x = 64,014,416,786.88/268,225.68
  6. Step 6: Final answer
    x = 238,658.79

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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.