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Finding the Fourth Proportional to 446,187.84, 669,368.80 and 130,649.92

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Solution

The fourth proportional to 446,187.84, 669,368.80 and 130,649.92 is: 196,000.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,187.84 : 669,368.80 = 130,649.92 : x
  2. Step 2: Convert to fraction form
    446,187.84/669,368.80 = 130,649.92/x
  3. Step 3: Cross multiply
    446,187.84x = 669,368.80 × 130,649.92
  4. Step 4: Simplify right side
    446,187.84x = 87,452,980,170.50
  5. Step 5: Solve for x
    x = 87,452,980,170.50/446,187.84
  6. Step 6: Final answer
    x = 196,000.37

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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.