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Finding the Fourth Proportional to 172,700.19, 259,073.86 and 60,354.34

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Solution

The fourth proportional to 172,700.19, 259,073.86 and 60,354.34 is: 90,539.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,700.19 : 259,073.86 = 60,354.34 : x
  2. Step 2: Convert to fraction form
    172,700.19/259,073.86 = 60,354.34/x
  3. Step 3: Cross multiply
    172,700.19x = 259,073.86 × 60,354.34
  4. Step 4: Simplify right side
    172,700.19x = 15,636,231,831.55
  5. Step 5: Solve for x
    x = 15,636,231,831.55/172,700.19
  6. Step 6: Final answer
    x = 90,539.75

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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.