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Finding the Fourth Proportional to 172,762.79, 238,416.57 and 96,289.74

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Solution

The fourth proportional to 172,762.79, 238,416.57 and 96,289.74 is: 132,882.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,762.79 : 238,416.57 = 96,289.74 : x
  2. Step 2: Convert to fraction form
    172,762.79/238,416.57 = 96,289.74/x
  3. Step 3: Cross multiply
    172,762.79x = 238,416.57 × 96,289.74
  4. Step 4: Simplify right side
    172,762.79x = 22,957,069,536.99
  5. Step 5: Solve for x
    x = 22,957,069,536.99/172,762.79
  6. Step 6: Final answer
    x = 132,882.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.