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Finding the Fourth Proportional to 124,396.43, 186,321.14 and 102,804.43

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Solution

The fourth proportional to 124,396.43, 186,321.14 and 102,804.43 is: 153,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,396.43 : 186,321.14 = 102,804.43 : x
  2. Step 2: Convert to fraction form
    124,396.43/186,321.14 = 102,804.43/x
  3. Step 3: Cross multiply
    124,396.43x = 186,321.14 × 102,804.43
  4. Step 4: Simplify right side
    124,396.43x = 19,154,639,048.40
  5. Step 5: Solve for x
    x = 19,154,639,048.40/124,396.43
  6. Step 6: Final answer
    x = 153,980.62

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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.