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Finding the Fourth Proportional to 476,619.72, 715,032.36 and 161,069.64

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Solution

The fourth proportional to 476,619.72, 715,032.36 and 161,069.64 is: 241,639.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,619.72 : 715,032.36 = 161,069.64 : x
  2. Step 2: Convert to fraction form
    476,619.72/715,032.36 = 161,069.64/x
  3. Step 3: Cross multiply
    476,619.72x = 715,032.36 × 161,069.64
  4. Step 4: Simplify right side
    476,619.72x = 115,170,004,813.55
  5. Step 5: Solve for x
    x = 115,170,004,813.55/476,619.72
  6. Step 6: Final answer
    x = 241,639.19

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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.