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Finding the Fourth Proportional to 161,208.60, 241,812.90 and 102,305.40

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Solution

The fourth proportional to 161,208.60, 241,812.90 and 102,305.40 is: 153,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,208.60 : 241,812.90 = 102,305.40 : x
  2. Step 2: Convert to fraction form
    161,208.60/241,812.90 = 102,305.40/x
  3. Step 3: Cross multiply
    161,208.60x = 241,812.90 × 102,305.40
  4. Step 4: Simplify right side
    161,208.60x = 24,738,765,459.66
  5. Step 5: Solve for x
    x = 24,738,765,459.66/161,208.60
  6. Step 6: Final answer
    x = 153,458.10

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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.