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Finding the Fourth Proportional to 235,400.60, 353,100.90 and 57,905.30

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Solution

The fourth proportional to 235,400.60, 353,100.90 and 57,905.30 is: 86,857.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,400.60 : 353,100.90 = 57,905.30 : x
  2. Step 2: Convert to fraction form
    235,400.60/353,100.90 = 57,905.30/x
  3. Step 3: Cross multiply
    235,400.60x = 353,100.90 × 57,905.30
  4. Step 4: Simplify right side
    235,400.60x = 20,446,413,544.77
  5. Step 5: Solve for x
    x = 20,446,413,544.77/235,400.60
  6. Step 6: Final answer
    x = 86,857.95

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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.