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Finding the Fourth Proportional to 185,307.63, 255,722.70 and 103,634.97

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Solution

The fourth proportional to 185,307.63, 255,722.70 and 103,634.97 is: 143,015.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,307.63 : 255,722.70 = 103,634.97 : x
  2. Step 2: Convert to fraction form
    185,307.63/255,722.70 = 103,634.97/x
  3. Step 3: Cross multiply
    185,307.63x = 255,722.70 × 103,634.97
  4. Step 4: Simplify right side
    185,307.63x = 26,501,814,342.82
  5. Step 5: Solve for x
    x = 26,501,814,342.82/185,307.63
  6. Step 6: Final answer
    x = 143,015.24

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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.