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Finding the Fourth Proportional to 161,250.40, 241,802.70 and 72,458.20

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Solution

The fourth proportional to 161,250.40, 241,802.70 and 72,458.20 is: 108,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,250.40 : 241,802.70 = 72,458.20 : x
  2. Step 2: Convert to fraction form
    161,250.40/241,802.70 = 72,458.20/x
  3. Step 3: Cross multiply
    161,250.40x = 241,802.70 × 72,458.20
  4. Step 4: Simplify right side
    161,250.40x = 17,520,588,397.14
  5. Step 5: Solve for x
    x = 17,520,588,397.14/161,250.40
  6. Step 6: Final answer
    x = 108,654.54

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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.