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Finding the Fourth Proportional to 446,612.58, 670,011.21 and 147,111.44

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Solution

The fourth proportional to 446,612.58, 670,011.21 and 147,111.44 is: 220,697.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,612.58 : 670,011.21 = 147,111.44 : x
  2. Step 2: Convert to fraction form
    446,612.58/670,011.21 = 147,111.44/x
  3. Step 3: Cross multiply
    446,612.58x = 670,011.21 × 147,111.44
  4. Step 4: Simplify right side
    446,612.58x = 98,566,310,569.19
  5. Step 5: Solve for x
    x = 98,566,310,569.19/446,612.58
  6. Step 6: Final answer
    x = 220,697.57

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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.