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Finding the Fourth Proportional to 136,952.93, 188,995.97 and 76,526.12

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Solution

The fourth proportional to 136,952.93, 188,995.97 and 76,526.12 is: 105,606.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,952.93 : 188,995.97 = 76,526.12 : x
  2. Step 2: Convert to fraction form
    136,952.93/188,995.97 = 76,526.12/x
  3. Step 3: Cross multiply
    136,952.93x = 188,995.97 × 76,526.12
  4. Step 4: Simplify right side
    136,952.93x = 14,463,128,943.54
  5. Step 5: Solve for x
    x = 14,463,128,943.54/136,952.93
  6. Step 6: Final answer
    x = 105,606.57

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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.