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Finding the Fourth Proportional to 446,681.70, 669,878.49 and 147,091.08

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Solution

The fourth proportional to 446,681.70, 669,878.49 and 147,091.08 is: 220,589.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,681.70 : 669,878.49 = 147,091.08 : x
  2. Step 2: Convert to fraction form
    446,681.70/669,878.49 = 147,091.08/x
  3. Step 3: Cross multiply
    446,681.70x = 669,878.49 × 147,091.08
  4. Step 4: Simplify right side
    446,681.70x = 98,533,150,562.87
  5. Step 5: Solve for x
    x = 98,533,150,562.87/446,681.70
  6. Step 6: Final answer
    x = 220,589.18

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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.