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Finding the Fourth Proportional to 273,897.77, 377,971.86 and 153,040.05

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Solution

The fourth proportional to 273,897.77, 377,971.86 and 153,040.05 is: 211,191.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,897.77 : 377,971.86 = 153,040.05 : x
  2. Step 2: Convert to fraction form
    273,897.77/377,971.86 = 153,040.05/x
  3. Step 3: Cross multiply
    273,897.77x = 377,971.86 × 153,040.05
  4. Step 4: Simplify right side
    273,897.77x = 57,844,832,352.99
  5. Step 5: Solve for x
    x = 57,844,832,352.99/273,897.77
  6. Step 6: Final answer
    x = 211,191.32

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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.