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Finding the Fourth Proportional to 300,649.63, 451,011.58 and 98,240.96

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Solution

The fourth proportional to 300,649.63, 451,011.58 and 98,240.96 is: 147,373.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,649.63 : 451,011.58 = 98,240.96 : x
  2. Step 2: Convert to fraction form
    300,649.63/451,011.58 = 98,240.96/x
  3. Step 3: Cross multiply
    300,649.63x = 451,011.58 × 98,240.96
  4. Step 4: Simplify right side
    300,649.63x = 44,307,808,935.30
  5. Step 5: Solve for x
    x = 44,307,808,935.30/300,649.63
  6. Step 6: Final answer
    x = 147,373.57

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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.