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Finding the Fourth Proportional to 210,447.77, 290,407.07 and 114,936.01

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Solution

The fourth proportional to 210,447.77, 290,407.07 and 114,936.01 is: 158,605.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,447.77 : 290,407.07 = 114,936.01 : x
  2. Step 2: Convert to fraction form
    210,447.77/290,407.07 = 114,936.01/x
  3. Step 3: Cross multiply
    210,447.77x = 290,407.07 × 114,936.01
  4. Step 4: Simplify right side
    210,447.77x = 33,378,231,096.45
  5. Step 5: Solve for x
    x = 33,378,231,096.45/210,447.77
  6. Step 6: Final answer
    x = 158,605.77

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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.