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Finding the Fourth Proportional to 192,326.59, 265,420.86 and 115,869.76

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Solution

The fourth proportional to 192,326.59, 265,420.86 and 115,869.76 is: 159,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,326.59 : 265,420.86 = 115,869.76 : x
  2. Step 2: Convert to fraction form
    192,326.59/265,420.86 = 115,869.76/x
  3. Step 3: Cross multiply
    192,326.59x = 265,420.86 × 115,869.76
  4. Step 4: Simplify right side
    192,326.59x = 30,754,249,914.41
  5. Step 5: Solve for x
    x = 30,754,249,914.41/192,326.59
  6. Step 6: Final answer
    x = 159,906.38

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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.