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Finding the Fourth Proportional to 196,603.40, 294,905.10 and 188,001.80

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Solution

The fourth proportional to 196,603.40, 294,905.10 and 188,001.80 is: 282,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,603.40 : 294,905.10 = 188,001.80 : x
  2. Step 2: Convert to fraction form
    196,603.40/294,905.10 = 188,001.80/x
  3. Step 3: Cross multiply
    196,603.40x = 294,905.10 × 188,001.80
  4. Step 4: Simplify right side
    196,603.40x = 55,442,689,629.18
  5. Step 5: Solve for x
    x = 55,442,689,629.18/196,603.40
  6. Step 6: Final answer
    x = 282,002.70

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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.