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Finding the Fourth Proportional to 198,955.34, 298,433.04 and 65,799.86

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Solution

The fourth proportional to 198,955.34, 298,433.04 and 65,799.86 is: 98,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,955.34 : 298,433.04 = 65,799.86 : x
  2. Step 2: Convert to fraction form
    198,955.34/298,433.04 = 65,799.86/x
  3. Step 3: Cross multiply
    198,955.34x = 298,433.04 × 65,799.86
  4. Step 4: Simplify right side
    198,955.34x = 19,636,852,251.37
  5. Step 5: Solve for x
    x = 19,636,852,251.37/198,955.34
  6. Step 6: Final answer
    x = 98,699.80

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1.5x scale

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.