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Finding the Fourth Proportional to 197,636, 296,484.72 and 66,338.72

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Solution

The fourth proportional to 197,636, 296,484.72 and 66,338.72 is: 99,518.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,636 : 296,484.72 = 66,338.72 : x
  2. Step 2: Convert to fraction form
    197,636/296,484.72 = 66,338.72/x
  3. Step 3: Cross multiply
    197,636x = 296,484.72 × 66,338.72
  4. Step 4: Simplify right side
    197,636x = 19,668,416,824.36
  5. Step 5: Solve for x
    x = 19,668,416,824.36/197,636
  6. Step 6: Final answer
    x = 99,518.39

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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.