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Finding the Fourth Proportional to 297,705.20, 446,428.20 and 97,948.40

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Solution

The fourth proportional to 297,705.20, 446,428.20 and 97,948.40 is: 146,879.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,705.20 : 446,428.20 = 97,948.40 : x
  2. Step 2: Convert to fraction form
    297,705.20/446,428.20 = 97,948.40/x
  3. Step 3: Cross multiply
    297,705.20x = 446,428.20 × 97,948.40
  4. Step 4: Simplify right side
    297,705.20x = 43,726,927,904.88
  5. Step 5: Solve for x
    x = 43,726,927,904.88/297,705.20
  6. Step 6: Final answer
    x = 146,879.96

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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.