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Finding the Fourth Proportional to 446,505.21, 669,752.65 and 109,542.58

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Solution

The fourth proportional to 446,505.21, 669,752.65 and 109,542.58 is: 164,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,505.21 : 669,752.65 = 109,542.58 : x
  2. Step 2: Convert to fraction form
    446,505.21/669,752.65 = 109,542.58/x
  3. Step 3: Cross multiply
    446,505.21x = 669,752.65 × 109,542.58
  4. Step 4: Simplify right side
    446,505.21x = 73,366,431,705.38
  5. Step 5: Solve for x
    x = 73,366,431,705.38/446,505.21
  6. Step 6: Final answer
    x = 164,312.60

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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.