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Finding the Fourth Proportional to 273,489.21, 377,453.16 and 152,638.29

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Solution

The fourth proportional to 273,489.21, 377,453.16 and 152,638.29 is: 210,662.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,489.21 : 377,453.16 = 152,638.29 : x
  2. Step 2: Convert to fraction form
    273,489.21/377,453.16 = 152,638.29/x
  3. Step 3: Cross multiply
    273,489.21x = 377,453.16 × 152,638.29
  4. Step 4: Simplify right side
    273,489.21x = 57,613,804,897.50
  5. Step 5: Solve for x
    x = 57,613,804,897.50/273,489.21
  6. Step 6: Final answer
    x = 210,662.08

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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.