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Finding the Fourth Proportional to 298,079.71, 447,024.72 and 98,362.87

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Solution

The fourth proportional to 298,079.71, 447,024.72 and 98,362.87 is: 147,513.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,079.71 : 447,024.72 = 98,362.87 : x
  2. Step 2: Convert to fraction form
    298,079.71/447,024.72 = 98,362.87/x
  3. Step 3: Cross multiply
    298,079.71x = 447,024.72 × 98,362.87
  4. Step 4: Simplify right side
    298,079.71x = 43,970,633,671.45
  5. Step 5: Solve for x
    x = 43,970,633,671.45/298,079.71
  6. Step 6: Final answer
    x = 147,513.01

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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.