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Finding the Fourth Proportional to 172,556.83, 258,897.53 and 60,253.60

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Solution

The fourth proportional to 172,556.83, 258,897.53 and 60,253.60 is: 90,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,556.83 : 258,897.53 = 60,253.60 : x
  2. Step 2: Convert to fraction form
    172,556.83/258,897.53 = 60,253.60/x
  3. Step 3: Cross multiply
    172,556.83x = 258,897.53 × 60,253.60
  4. Step 4: Simplify right side
    172,556.83x = 15,599,508,213.61
  5. Step 5: Solve for x
    x = 15,599,508,213.61/172,556.83
  6. Step 6: Final answer
    x = 90,402.15

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1.5x scale

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.