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Finding the Fourth Proportional to 297,934.60, 446,901.90 and 98,285.80

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Solution

The fourth proportional to 297,934.60, 446,901.90 and 98,285.80 is: 147,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,934.60 : 446,901.90 = 98,285.80 : x
  2. Step 2: Convert to fraction form
    297,934.60/446,901.90 = 98,285.80/x
  3. Step 3: Cross multiply
    297,934.60x = 446,901.90 × 98,285.80
  4. Step 4: Simplify right side
    297,934.60x = 43,924,110,763.02
  5. Step 5: Solve for x
    x = 43,924,110,763.02/297,934.60
  6. Step 6: Final answer
    x = 147,428.70

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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.