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Finding the Fourth Proportional to 291,273.13, 437,079.53 and 122,783.14

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Solution

The fourth proportional to 291,273.13, 437,079.53 and 122,783.14 is: 184,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,273.13 : 437,079.53 = 122,783.14 : x
  2. Step 2: Convert to fraction form
    291,273.13/437,079.53 = 122,783.14/x
  3. Step 3: Cross multiply
    291,273.13x = 437,079.53 × 122,783.14
  4. Step 4: Simplify right side
    291,273.13x = 53,665,997,123.12
  5. Step 5: Solve for x
    x = 53,665,997,123.12/291,273.13
  6. Step 6: Final answer
    x = 184,246.30

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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.