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Finding the Fourth Proportional to 191,776.64, 287,667.36 and 73,455.08

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Solution

The fourth proportional to 191,776.64, 287,667.36 and 73,455.08 is: 110,183.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,776.64 : 287,667.36 = 73,455.08 : x
  2. Step 2: Convert to fraction form
    191,776.64/287,667.36 = 73,455.08/x
  3. Step 3: Cross multiply
    191,776.64x = 287,667.36 × 73,455.08
  4. Step 4: Simplify right side
    191,776.64x = 21,130,628,942.19
  5. Step 5: Solve for x
    x = 21,130,628,942.19/191,776.64
  6. Step 6: Final answer
    x = 110,183.54

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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.