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Finding the Fourth Proportional to 295,724.40, 443,586.60 and 118,258.80

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Solution

The fourth proportional to 295,724.40, 443,586.60 and 118,258.80 is: 177,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,724.40 : 443,586.60 = 118,258.80 : x
  2. Step 2: Convert to fraction form
    295,724.40/443,586.60 = 118,258.80/x
  3. Step 3: Cross multiply
    295,724.40x = 443,586.60 × 118,258.80
  4. Step 4: Simplify right side
    295,724.40x = 52,458,019,012.08
  5. Step 5: Solve for x
    x = 52,458,019,012.08/295,724.40
  6. Step 6: Final answer
    x = 177,388.20

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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.