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Finding the Fourth Proportional to 291,485.93, 437,187.36 and 91,801.12

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Solution

The fourth proportional to 291,485.93, 437,187.36 and 91,801.12 is: 137,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,485.93 : 437,187.36 = 91,801.12 : x
  2. Step 2: Convert to fraction form
    291,485.93/437,187.36 = 91,801.12/x
  3. Step 3: Cross multiply
    291,485.93x = 437,187.36 × 91,801.12
  4. Step 4: Simplify right side
    291,485.93x = 40,134,289,297.84
  5. Step 5: Solve for x
    x = 40,134,289,297.84/291,485.93
  6. Step 6: Final answer
    x = 137,688.60

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1.5x scale

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.