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Finding the Fourth Proportional to 297,890.60, 446,717.10 and 98,155.40

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Solution

The fourth proportional to 297,890.60, 446,717.10 and 98,155.40 is: 147,193.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,890.60 : 446,717.10 = 98,155.40 : x
  2. Step 2: Convert to fraction form
    297,890.60/446,717.10 = 98,155.40/x
  3. Step 3: Cross multiply
    297,890.60x = 446,717.10 × 98,155.40
  4. Step 4: Simplify right side
    297,890.60x = 43,847,695,637.34
  5. Step 5: Solve for x
    x = 43,847,695,637.34/297,890.60
  6. Step 6: Final answer
    x = 147,193.96

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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.