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Finding the Fourth Proportional to 298,080.15, 447,025.38 and 98,363.31

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Solution

The fourth proportional to 298,080.15, 447,025.38 and 98,363.31 is: 147,513.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,080.15 : 447,025.38 = 98,363.31 : x
  2. Step 2: Convert to fraction form
    298,080.15/447,025.38 = 98,363.31/x
  3. Step 3: Cross multiply
    298,080.15x = 447,025.38 × 98,363.31
  4. Step 4: Simplify right side
    298,080.15x = 43,970,896,030.81
  5. Step 5: Solve for x
    x = 43,970,896,030.81/298,080.15
  6. Step 6: Final answer
    x = 147,513.67

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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.