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Finding the Fourth Proportional to 235,804.80, 353,585.60 and 69,571.20

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Solution

The fourth proportional to 235,804.80, 353,585.60 and 69,571.20 is: 104,320.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,804.80 : 353,585.60 = 69,571.20 : x
  2. Step 2: Convert to fraction form
    235,804.80/353,585.60 = 69,571.20/x
  3. Step 3: Cross multiply
    235,804.80x = 353,585.60 × 69,571.20
  4. Step 4: Simplify right side
    235,804.80x = 24,599,374,494.72
  5. Step 5: Solve for x
    x = 24,599,374,494.72/235,804.80
  6. Step 6: Final answer
    x = 104,320.92

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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.