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Finding the Fourth Proportional to 197,358.40, 296,040.40 and 64,239.36

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Solution

The fourth proportional to 197,358.40, 296,040.40 and 64,239.36 is: 96,359.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,358.40 : 296,040.40 = 64,239.36 : x
  2. Step 2: Convert to fraction form
    197,358.40/296,040.40 = 64,239.36/x
  3. Step 3: Cross multiply
    197,358.40x = 296,040.40 × 64,239.36
  4. Step 4: Simplify right side
    197,358.40x = 19,017,445,830.14
  5. Step 5: Solve for x
    x = 19,017,445,830.14/197,358.40
  6. Step 6: Final answer
    x = 96,359.95

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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.