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Finding the Fourth Proportional to 161,137.80, 241,706.70 and 144,808.20

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Solution

The fourth proportional to 161,137.80, 241,706.70 and 144,808.20 is: 217,212.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,137.80 : 241,706.70 = 144,808.20 : x
  2. Step 2: Convert to fraction form
    161,137.80/241,706.70 = 144,808.20/x
  3. Step 3: Cross multiply
    161,137.80x = 241,706.70 × 144,808.20
  4. Step 4: Simplify right side
    161,137.80x = 35,001,112,154.94
  5. Step 5: Solve for x
    x = 35,001,112,154.94/161,137.80
  6. Step 6: Final answer
    x = 217,212.30

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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.