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Finding the Fourth Proportional to 535,644.48, 803,518.56 and 156,556.68

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Solution

The fourth proportional to 535,644.48, 803,518.56 and 156,556.68 is: 234,850.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,644.48 : 803,518.56 = 156,556.68 : x
  2. Step 2: Convert to fraction form
    535,644.48/803,518.56 = 156,556.68/x
  3. Step 3: Cross multiply
    535,644.48x = 803,518.56 × 156,556.68
  4. Step 4: Simplify right side
    535,644.48x = 125,796,198,071.98
  5. Step 5: Solve for x
    x = 125,796,198,071.98/535,644.48
  6. Step 6: Final answer
    x = 234,850.17

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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.