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Finding the Fourth Proportional to 291,332.64, 437,173.92 and 122,842.56

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Solution

The fourth proportional to 291,332.64, 437,173.92 and 122,842.56 is: 184,337.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,332.64 : 437,173.92 = 122,842.56 : x
  2. Step 2: Convert to fraction form
    291,332.64/437,173.92 = 122,842.56/x
  3. Step 3: Cross multiply
    291,332.64x = 437,173.92 × 122,842.56
  4. Step 4: Simplify right side
    291,332.64x = 53,703,563,498.04
  5. Step 5: Solve for x
    x = 53,703,563,498.04/291,332.64
  6. Step 6: Final answer
    x = 184,337.61

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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.