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Finding the Fourth Proportional to 48,907.40, 73,361.10 and 45,602.60

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Solution

The fourth proportional to 48,907.40, 73,361.10 and 45,602.60 is: 68,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,907.40 : 73,361.10 = 45,602.60 : x
  2. Step 2: Convert to fraction form
    48,907.40/73,361.10 = 45,602.60/x
  3. Step 3: Cross multiply
    48,907.40x = 73,361.10 × 45,602.60
  4. Step 4: Simplify right side
    48,907.40x = 3,345,456,898.86
  5. Step 5: Solve for x
    x = 3,345,456,898.86/48,907.40
  6. Step 6: Final answer
    x = 68,403.90

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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.