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Finding the Fourth Proportional to 273,291.05, 377,142.15 and 152,440.16

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Solution

The fourth proportional to 273,291.05, 377,142.15 and 152,440.16 is: 210,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,291.05 : 377,142.15 = 152,440.16 : x
  2. Step 2: Convert to fraction form
    273,291.05/377,142.15 = 152,440.16/x
  3. Step 3: Cross multiply
    273,291.05x = 377,142.15 × 152,440.16
  4. Step 4: Simplify right side
    273,291.05x = 57,491,607,803.03
  5. Step 5: Solve for x
    x = 57,491,607,803.03/273,291.05
  6. Step 6: Final answer
    x = 210,367.70

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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.