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Finding the Fourth Proportional to 298,328.59, 447,448.46 and 98,650.02

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Solution

The fourth proportional to 298,328.59, 447,448.46 and 98,650.02 is: 147,960.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,328.59 : 447,448.46 = 98,650.02 : x
  2. Step 2: Convert to fraction form
    298,328.59/447,448.46 = 98,650.02/x
  3. Step 3: Cross multiply
    298,328.59x = 447,448.46 × 98,650.02
  4. Step 4: Simplify right side
    298,328.59x = 44,140,798,195.75
  5. Step 5: Solve for x
    x = 44,140,798,195.75/298,328.59
  6. Step 6: Final answer
    x = 147,960.34

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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.