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Finding the Fourth Proportional to 273,891.48, 377,932.66 and 153,017.76

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Solution

The fourth proportional to 273,891.48, 377,932.66 and 153,017.76 is: 211,143.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,891.48 : 377,932.66 = 153,017.76 : x
  2. Step 2: Convert to fraction form
    273,891.48/377,932.66 = 153,017.76/x
  3. Step 3: Cross multiply
    273,891.48x = 377,932.66 × 153,017.76
  4. Step 4: Simplify right side
    273,891.48x = 57,830,409,064.04
  5. Step 5: Solve for x
    x = 57,830,409,064.04/273,891.48
  6. Step 6: Final answer
    x = 211,143.51

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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.