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Finding the Fourth Proportional to 172,860.32, 259,334.21 and 48,201.32

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Solution

The fourth proportional to 172,860.32, 259,334.21 and 48,201.32 is: 72,314.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,860.32 : 259,334.21 = 48,201.32 : x
  2. Step 2: Convert to fraction form
    172,860.32/259,334.21 = 48,201.32/x
  3. Step 3: Cross multiply
    172,860.32x = 259,334.21 × 48,201.32
  4. Step 4: Simplify right side
    172,860.32x = 12,500,249,946.49
  5. Step 5: Solve for x
    x = 12,500,249,946.49/172,860.32
  6. Step 6: Final answer
    x = 72,314.17

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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.