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Finding the Fourth Proportional to 146,795.60, 220,193.40 and 76,696.40

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Solution

The fourth proportional to 146,795.60, 220,193.40 and 76,696.40 is: 115,044.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,795.60 : 220,193.40 = 76,696.40 : x
  2. Step 2: Convert to fraction form
    146,795.60/220,193.40 = 76,696.40/x
  3. Step 3: Cross multiply
    146,795.60x = 220,193.40 × 76,696.40
  4. Step 4: Simplify right side
    146,795.60x = 16,888,041,083.76
  5. Step 5: Solve for x
    x = 16,888,041,083.76/146,795.60
  6. Step 6: Final answer
    x = 115,044.60

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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.