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Finding the Fourth Proportional to 161,130.80, 241,696.20 and 159,964.40

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Solution

The fourth proportional to 161,130.80, 241,696.20 and 159,964.40 is: 239,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,130.80 : 241,696.20 = 159,964.40 : x
  2. Step 2: Convert to fraction form
    161,130.80/241,696.20 = 159,964.40/x
  3. Step 3: Cross multiply
    161,130.80x = 241,696.20 × 159,964.40
  4. Step 4: Simplify right side
    161,130.80x = 38,662,787,615.28
  5. Step 5: Solve for x
    x = 38,662,787,615.28/161,130.80
  6. Step 6: Final answer
    x = 239,946.60

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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.