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Finding the Fourth Proportional to 69,656.76, 104,485.14 and 48,972.60

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Solution

The fourth proportional to 69,656.76, 104,485.14 and 48,972.60 is: 73,458.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,656.76 : 104,485.14 = 48,972.60 : x
  2. Step 2: Convert to fraction form
    69,656.76/104,485.14 = 48,972.60/x
  3. Step 3: Cross multiply
    69,656.76x = 104,485.14 × 48,972.60
  4. Step 4: Simplify right side
    69,656.76x = 5,116,908,967.16
  5. Step 5: Solve for x
    x = 5,116,908,967.16/69,656.76
  6. Step 6: Final answer
    x = 73,458.90

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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.