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Finding the Fourth Proportional to 188,599.40, 260,247.49 and 108,030.32

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Solution

The fourth proportional to 188,599.40, 260,247.49 and 108,030.32 is: 149,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,599.40 : 260,247.49 = 108,030.32 : x
  2. Step 2: Convert to fraction form
    188,599.40/260,247.49 = 108,030.32/x
  3. Step 3: Cross multiply
    188,599.40x = 260,247.49 × 108,030.32
  4. Step 4: Simplify right side
    188,599.40x = 28,114,618,433.13
  5. Step 5: Solve for x
    x = 28,114,618,433.13/188,599.40
  6. Step 6: Final answer
    x = 149,070.56

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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.