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Finding the Fourth Proportional to 273,905.64, 377,990.28 and 153,047.16

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Solution

The fourth proportional to 273,905.64, 377,990.28 and 153,047.16 is: 211,205.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,905.64 : 377,990.28 = 153,047.16 : x
  2. Step 2: Convert to fraction form
    273,905.64/377,990.28 = 153,047.16/x
  3. Step 3: Cross multiply
    273,905.64x = 377,990.28 × 153,047.16
  4. Step 4: Simplify right side
    273,905.64x = 57,850,338,861.60
  5. Step 5: Solve for x
    x = 57,850,338,861.60/273,905.64
  6. Step 6: Final answer
    x = 211,205.36

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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.