Home / 198,938.34-298,417.43-56,804.70

Finding the Fourth Proportional to 198,938.34, 298,417.43 and 56,804.70

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Solution

The fourth proportional to 198,938.34, 298,417.43 and 56,804.70 is: 85,209.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,938.34 : 298,417.43 = 56,804.70 : x
  2. Step 2: Convert to fraction form
    198,938.34/298,417.43 = 56,804.70/x
  3. Step 3: Cross multiply
    198,938.34x = 298,417.43 × 56,804.70
  4. Step 4: Simplify right side
    198,938.34x = 16,951,512,585.92
  5. Step 5: Solve for x
    x = 16,951,512,585.92/198,938.34
  6. Step 6: Final answer
    x = 85,209.88

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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.