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Finding the Fourth Proportional to 196,708.39, 294,990.29 and 70,314.53

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Solution

The fourth proportional to 196,708.39, 294,990.29 and 70,314.53 is: 105,445.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,708.39 : 294,990.29 = 70,314.53 : x
  2. Step 2: Convert to fraction form
    196,708.39/294,990.29 = 70,314.53/x
  3. Step 3: Cross multiply
    196,708.39x = 294,990.29 × 70,314.53
  4. Step 4: Simplify right side
    196,708.39x = 20,742,102,033.07
  5. Step 5: Solve for x
    x = 20,742,102,033.07/196,708.39
  6. Step 6: Final answer
    x = 105,445.95

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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.