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Finding the Fourth Proportional to 354,625.60, 531,938.40 and 118,004.80

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Solution

The fourth proportional to 354,625.60, 531,938.40 and 118,004.80 is: 177,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,625.60 : 531,938.40 = 118,004.80 : x
  2. Step 2: Convert to fraction form
    354,625.60/531,938.40 = 118,004.80/x
  3. Step 3: Cross multiply
    354,625.60x = 531,938.40 × 118,004.80
  4. Step 4: Simplify right side
    354,625.60x = 62,771,284,504.32
  5. Step 5: Solve for x
    x = 62,771,284,504.32/354,625.60
  6. Step 6: Final answer
    x = 177,007.20

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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.