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Finding the Fourth Proportional to 118,043.10, 165,726.90 and 118,043.10

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Solution

The fourth proportional to 118,043.10, 165,726.90 and 118,043.10 is: 165,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,043.10 : 165,726.90 = 118,043.10 : x
  2. Step 2: Convert to fraction form
    118,043.10/165,726.90 = 118,043.10/x
  3. Step 3: Cross multiply
    118,043.10x = 165,726.90 × 118,043.10
  4. Step 4: Simplify right side
    118,043.10x = 19,562,917,029.39
  5. Step 5: Solve for x
    x = 19,562,917,029.39/118,043.10
  6. Step 6: Final answer
    x = 165,726.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.