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Finding the Fourth Proportional to 273,885.12, 377,979.28 and 153,027.12

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Solution

The fourth proportional to 273,885.12, 377,979.28 and 153,027.12 is: 211,187.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,885.12 : 377,979.28 = 153,027.12 : x
  2. Step 2: Convert to fraction form
    273,885.12/377,979.28 = 153,027.12/x
  3. Step 3: Cross multiply
    273,885.12x = 377,979.28 × 153,027.12
  4. Step 4: Simplify right side
    273,885.12x = 57,841,080,638.07
  5. Step 5: Solve for x
    x = 57,841,080,638.07/273,885.12
  6. Step 6: Final answer
    x = 211,187.38

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1.5x scale

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.