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Finding the Fourth Proportional to 273,898.53, 377,972.88 and 153,040.80

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Solution

The fourth proportional to 273,898.53, 377,972.88 and 153,040.80 is: 211,192.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,898.53 : 377,972.88 = 153,040.80 : x
  2. Step 2: Convert to fraction form
    273,898.53/377,972.88 = 153,040.80/x
  3. Step 3: Cross multiply
    273,898.53x = 377,972.88 × 153,040.80
  4. Step 4: Simplify right side
    273,898.53x = 57,845,271,933.50
  5. Step 5: Solve for x
    x = 57,845,271,933.50/273,898.53
  6. Step 6: Final answer
    x = 211,192.34

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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.