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Finding the Fourth Proportional to 118,602.73, 163,679.03 and 68,317.93

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Solution

The fourth proportional to 118,602.73, 163,679.03 and 68,317.93 is: 94,282.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,602.73 : 163,679.03 = 68,317.93 : x
  2. Step 2: Convert to fraction form
    118,602.73/163,679.03 = 68,317.93/x
  3. Step 3: Cross multiply
    118,602.73x = 163,679.03 × 68,317.93
  4. Step 4: Simplify right side
    118,602.73x = 11,182,212,514.01
  5. Step 5: Solve for x
    x = 11,182,212,514.01/118,602.73
  6. Step 6: Final answer
    x = 94,282.93

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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.