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Finding the Fourth Proportional to 188,756.34, 260,483.80 and 103,873.41

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Solution

The fourth proportional to 188,756.34, 260,483.80 and 103,873.41 is: 143,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,756.34 : 260,483.80 = 103,873.41 : x
  2. Step 2: Convert to fraction form
    188,756.34/260,483.80 = 103,873.41/x
  3. Step 3: Cross multiply
    188,756.34x = 260,483.80 × 103,873.41
  4. Step 4: Simplify right side
    188,756.34x = 27,057,338,733.97
  5. Step 5: Solve for x
    x = 27,057,338,733.97/188,756.34
  6. Step 6: Final answer
    x = 143,345.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.