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Finding the Fourth Proportional to 318,558.76, 477,907.26 and 96,937

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Solution

The fourth proportional to 318,558.76, 477,907.26 and 96,937 is: 145,426.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,558.76 : 477,907.26 = 96,937 : x
  2. Step 2: Convert to fraction form
    318,558.76/477,907.26 = 96,937/x
  3. Step 3: Cross multiply
    318,558.76x = 477,907.26 × 96,937
  4. Step 4: Simplify right side
    318,558.76x = 46,326,896,062.62
  5. Step 5: Solve for x
    x = 46,326,896,062.62/318,558.76
  6. Step 6: Final answer
    x = 145,426.53

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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.