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Finding the Fourth Proportional to 273,260.10, 407,173.70 and 243,448.86

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Solution

The fourth proportional to 273,260.10, 407,173.70 and 243,448.86 is: 362,753.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,260.10 : 407,173.70 = 243,448.86 : x
  2. Step 2: Convert to fraction form
    273,260.10/407,173.70 = 243,448.86/x
  3. Step 3: Cross multiply
    273,260.10x = 407,173.70 × 243,448.86
  4. Step 4: Simplify right side
    273,260.10x = 99,125,973,086.98
  5. Step 5: Solve for x
    x = 99,125,973,086.98/273,260.10
  6. Step 6: Final answer
    x = 362,753.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.