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Finding the Fourth Proportional to 196,651.40, 295,130.70 and 91,483.40

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Solution

The fourth proportional to 196,651.40, 295,130.70 and 91,483.40 is: 137,296.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,651.40 : 295,130.70 = 91,483.40 : x
  2. Step 2: Convert to fraction form
    196,651.40/295,130.70 = 91,483.40/x
  3. Step 3: Cross multiply
    196,651.40x = 295,130.70 × 91,483.40
  4. Step 4: Simplify right side
    196,651.40x = 26,999,559,880.38
  5. Step 5: Solve for x
    x = 26,999,559,880.38/196,651.40
  6. Step 6: Final answer
    x = 137,296.56

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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.