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Finding the Fourth Proportional to 291,357.15, 437,090.85 and 113,852.94

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Solution

The fourth proportional to 291,357.15, 437,090.85 and 113,852.94 is: 170,800.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,357.15 : 437,090.85 = 113,852.94 : x
  2. Step 2: Convert to fraction form
    291,357.15/437,090.85 = 113,852.94/x
  3. Step 3: Cross multiply
    291,357.15x = 437,090.85 × 113,852.94
  4. Step 4: Simplify right side
    291,357.15x = 49,764,078,319.60
  5. Step 5: Solve for x
    x = 49,764,078,319.60/291,357.15
  6. Step 6: Final answer
    x = 170,800.95

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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.