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Finding the Fourth Proportional to 353,980.60, 530,096.10 and 235,007.80

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Solution

The fourth proportional to 353,980.60, 530,096.10 and 235,007.80 is: 351,930.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,980.60 : 530,096.10 = 235,007.80 : x
  2. Step 2: Convert to fraction form
    353,980.60/530,096.10 = 235,007.80/x
  3. Step 3: Cross multiply
    353,980.60x = 530,096.10 × 235,007.80
  4. Step 4: Simplify right side
    353,980.60x = 124,576,718,249.58
  5. Step 5: Solve for x
    x = 124,576,718,249.58/353,980.60
  6. Step 6: Final answer
    x = 351,930.92

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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.