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Finding the Fourth Proportional to 235,894.40, 325,948.80 and 188,538.56

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Solution

The fourth proportional to 235,894.40, 325,948.80 and 188,538.56 is: 260,514.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,894.40 : 325,948.80 = 188,538.56 : x
  2. Step 2: Convert to fraction form
    235,894.40/325,948.80 = 188,538.56/x
  3. Step 3: Cross multiply
    235,894.40x = 325,948.80 × 188,538.56
  4. Step 4: Simplify right side
    235,894.40x = 61,453,917,385.73
  5. Step 5: Solve for x
    x = 61,453,917,385.73/235,894.40
  6. Step 6: Final answer
    x = 260,514.52

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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.