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Finding the Fourth Proportional to 354,673.60, 531,135.60 and 235,700.80

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Solution

The fourth proportional to 354,673.60, 531,135.60 and 235,700.80 is: 352,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,673.60 : 531,135.60 = 235,700.80 : x
  2. Step 2: Convert to fraction form
    354,673.60/531,135.60 = 235,700.80/x
  3. Step 3: Cross multiply
    354,673.60x = 531,135.60 × 235,700.80
  4. Step 4: Simplify right side
    354,673.60x = 125,189,085,828.48
  5. Step 5: Solve for x
    x = 125,189,085,828.48/354,673.60
  6. Step 6: Final answer
    x = 352,969.85

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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.