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Finding the Fourth Proportional to 122,651.76, 183,533.52 and 101,394.12

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Solution

The fourth proportional to 122,651.76, 183,533.52 and 101,394.12 is: 151,724.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,651.76 : 183,533.52 = 101,394.12 : x
  2. Step 2: Convert to fraction form
    122,651.76/183,533.52 = 101,394.12/x
  3. Step 3: Cross multiply
    122,651.76x = 183,533.52 × 101,394.12
  4. Step 4: Simplify right side
    122,651.76x = 18,609,219,750.90
  5. Step 5: Solve for x
    x = 18,609,219,750.90/122,651.76
  6. Step 6: Final answer
    x = 151,724.03

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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.