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Finding the Fourth Proportional to 118,599, 177,910.92 and 38,643.18

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Solution

The fourth proportional to 118,599, 177,910.92 and 38,643.18 is: 57,968.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,599 : 177,910.92 = 38,643.18 : x
  2. Step 2: Convert to fraction form
    118,599/177,910.92 = 38,643.18/x
  3. Step 3: Cross multiply
    118,599x = 177,910.92 × 38,643.18
  4. Step 4: Simplify right side
    118,599x = 6,875,043,705.53
  5. Step 5: Solve for x
    x = 6,875,043,705.53/118,599
  6. Step 6: Final answer
    x = 57,968.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.