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Finding the Fourth Proportional to 191,783.21, 264,659.18 and 104,568.39

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Solution

The fourth proportional to 191,783.21, 264,659.18 and 104,568.39 is: 144,303.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,783.21 : 264,659.18 = 104,568.39 : x
  2. Step 2: Convert to fraction form
    191,783.21/264,659.18 = 104,568.39/x
  3. Step 3: Cross multiply
    191,783.21x = 264,659.18 × 104,568.39
  4. Step 4: Simplify right side
    191,783.21x = 27,674,983,828.48
  5. Step 5: Solve for x
    x = 27,674,983,828.48/191,783.21
  6. Step 6: Final answer
    x = 144,303.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.