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Finding the Fourth Proportional to 446,746.80, 670,217.40 and 147,176.40

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Solution

The fourth proportional to 446,746.80, 670,217.40 and 147,176.40 is: 220,796.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,746.80 : 670,217.40 = 147,176.40 : x
  2. Step 2: Convert to fraction form
    446,746.80/670,217.40 = 147,176.40/x
  3. Step 3: Cross multiply
    446,746.80x = 670,217.40 × 147,176.40
  4. Step 4: Simplify right side
    446,746.80x = 98,640,184,149.36
  5. Step 5: Solve for x
    x = 98,640,184,149.36/446,746.80
  6. Step 6: Final answer
    x = 220,796.62

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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.