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Finding the Fourth Proportional to 273,129.76, 376,919.28 and 152,268.60

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Solution

The fourth proportional to 273,129.76, 376,919.28 and 152,268.60 is: 210,130.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,129.76 : 376,919.28 = 152,268.60 : x
  2. Step 2: Convert to fraction form
    273,129.76/376,919.28 = 152,268.60/x
  3. Step 3: Cross multiply
    273,129.76x = 376,919.28 × 152,268.60
  4. Step 4: Simplify right side
    273,129.76x = 57,392,971,078.61
  5. Step 5: Solve for x
    x = 57,392,971,078.61/273,129.76
  6. Step 6: Final answer
    x = 210,130.79

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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.