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Finding the Fourth Proportional to 463,999.28, 695,973.30 and 127,015.52

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Solution

The fourth proportional to 463,999.28, 695,973.30 and 127,015.52 is: 190,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,999.28 : 695,973.30 = 127,015.52 : x
  2. Step 2: Convert to fraction form
    463,999.28/695,973.30 = 127,015.52/x
  3. Step 3: Cross multiply
    463,999.28x = 695,973.30 × 127,015.52
  4. Step 4: Simplify right side
    463,999.28x = 88,399,410,605.62
  5. Step 5: Solve for x
    x = 88,399,410,605.62/463,999.28
  6. Step 6: Final answer
    x = 190,516.27

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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.