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Finding the Fourth Proportional to 305,969.70, 459,037.62 and 92,729.01

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Solution

The fourth proportional to 305,969.70, 459,037.62 and 92,729.01 is: 139,118.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,969.70 : 459,037.62 = 92,729.01 : x
  2. Step 2: Convert to fraction form
    305,969.70/459,037.62 = 92,729.01/x
  3. Step 3: Cross multiply
    305,969.70x = 459,037.62 × 92,729.01
  4. Step 4: Simplify right side
    305,969.70x = 42,566,104,055.36
  5. Step 5: Solve for x
    x = 42,566,104,055.36/305,969.70
  6. Step 6: Final answer
    x = 139,118.69

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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.