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Finding the Fourth Proportional to 388,941.75, 583,412.63 and 93,453.75

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Solution

The fourth proportional to 388,941.75, 583,412.63 and 93,453.75 is: 140,180.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,941.75 : 583,412.63 = 93,453.75 : x
  2. Step 2: Convert to fraction form
    388,941.75/583,412.63 = 93,453.75/x
  3. Step 3: Cross multiply
    388,941.75x = 583,412.63 × 93,453.75
  4. Step 4: Simplify right side
    388,941.75x = 54,522,097,603.59
  5. Step 5: Solve for x
    x = 54,522,097,603.59/388,941.75
  6. Step 6: Final answer
    x = 140,180.63

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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.