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Finding the Fourth Proportional to 114,969.15, 158,613.39 and 84,826.40

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Solution

The fourth proportional to 114,969.15, 158,613.39 and 84,826.40 is: 117,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,969.15 : 158,613.39 = 84,826.40 : x
  2. Step 2: Convert to fraction form
    114,969.15/158,613.39 = 84,826.40/x
  3. Step 3: Cross multiply
    114,969.15x = 158,613.39 × 84,826.40
  4. Step 4: Simplify right side
    114,969.15x = 13,454,602,072.43
  5. Step 5: Solve for x
    x = 13,454,602,072.43/114,969.15
  6. Step 6: Final answer
    x = 117,027.93

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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.