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Finding the Fourth Proportional to 151,394.54, 208,929.93 and 94,065.47

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Solution

The fourth proportional to 151,394.54, 208,929.93 and 94,065.47 is: 129,813.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,394.54 : 208,929.93 = 94,065.47 : x
  2. Step 2: Convert to fraction form
    151,394.54/208,929.93 = 94,065.47/x
  3. Step 3: Cross multiply
    151,394.54x = 208,929.93 × 94,065.47
  4. Step 4: Simplify right side
    151,394.54x = 19,653,091,977.73
  5. Step 5: Solve for x
    x = 19,653,091,977.73/151,394.54
  6. Step 6: Final answer
    x = 129,813.75

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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.