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Finding the Fourth Proportional to 441,109.60, 661,750.80 and 188,389.60

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Solution

The fourth proportional to 441,109.60, 661,750.80 and 188,389.60 is: 282,621.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,109.60 : 661,750.80 = 188,389.60 : x
  2. Step 2: Convert to fraction form
    441,109.60/661,750.80 = 188,389.60/x
  3. Step 3: Cross multiply
    441,109.60x = 661,750.80 × 188,389.60
  4. Step 4: Simplify right side
    441,109.60x = 124,666,968,511.68
  5. Step 5: Solve for x
    x = 124,666,968,511.68/441,109.60
  6. Step 6: Final answer
    x = 282,621.30

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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.