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Finding the Fourth Proportional to 301,120.76, 451,715.70 and 101,372.60

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Solution

The fourth proportional to 301,120.76, 451,715.70 and 101,372.60 is: 152,070.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,120.76 : 451,715.70 = 101,372.60 : x
  2. Step 2: Convert to fraction form
    301,120.76/451,715.70 = 101,372.60/x
  3. Step 3: Cross multiply
    301,120.76x = 451,715.70 × 101,372.60
  4. Step 4: Simplify right side
    301,120.76x = 45,791,594,969.82
  5. Step 5: Solve for x
    x = 45,791,594,969.82/301,120.76
  6. Step 6: Final answer
    x = 152,070.53

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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.