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Finding the Fourth Proportional to 49,907.60, 74,947.80 and 48,352.40

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Solution

The fourth proportional to 49,907.60, 74,947.80 and 48,352.40 is: 72,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,907.60 : 74,947.80 = 48,352.40 : x
  2. Step 2: Convert to fraction form
    49,907.60/74,947.80 = 48,352.40/x
  3. Step 3: Cross multiply
    49,907.60x = 74,947.80 × 48,352.40
  4. Step 4: Simplify right side
    49,907.60x = 3,623,906,004.72
  5. Step 5: Solve for x
    x = 3,623,906,004.72/49,907.60
  6. Step 6: Final answer
    x = 72,612.31

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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.