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Finding the Fourth Proportional to 245,096.60, 367,644.90 and 78,884.60

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Solution

The fourth proportional to 245,096.60, 367,644.90 and 78,884.60 is: 118,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,096.60 : 367,644.90 = 78,884.60 : x
  2. Step 2: Convert to fraction form
    245,096.60/367,644.90 = 78,884.60/x
  3. Step 3: Cross multiply
    245,096.60x = 367,644.90 × 78,884.60
  4. Step 4: Simplify right side
    245,096.60x = 29,001,520,878.54
  5. Step 5: Solve for x
    x = 29,001,520,878.54/245,096.60
  6. Step 6: Final answer
    x = 118,326.90

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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.