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Finding the Fourth Proportional to 271,291.95, 374,364.64 and 150,428.76

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Solution

The fourth proportional to 271,291.95, 374,364.64 and 150,428.76 is: 207,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,291.95 : 374,364.64 = 150,428.76 : x
  2. Step 2: Convert to fraction form
    271,291.95/374,364.64 = 150,428.76/x
  3. Step 3: Cross multiply
    271,291.95x = 374,364.64 × 150,428.76
  4. Step 4: Simplify right side
    271,291.95x = 56,315,208,583.05
  5. Step 5: Solve for x
    x = 56,315,208,583.05/271,291.95
  6. Step 6: Final answer
    x = 207,581.57

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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.