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Finding the Fourth Proportional to 295,718.40, 443,480.40 and 108,705.60

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Solution

The fourth proportional to 295,718.40, 443,480.40 and 108,705.60 is: 163,022.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,718.40 : 443,480.40 = 108,705.60 : x
  2. Step 2: Convert to fraction form
    295,718.40/443,480.40 = 108,705.60/x
  3. Step 3: Cross multiply
    295,718.40x = 443,480.40 × 108,705.60
  4. Step 4: Simplify right side
    295,718.40x = 48,208,802,970.24
  5. Step 5: Solve for x
    x = 48,208,802,970.24/295,718.40
  6. Step 6: Final answer
    x = 163,022.67

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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.