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Finding the Fourth Proportional to 370,709.78, 556,067.60 and 242,733.90

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Solution

The fourth proportional to 370,709.78, 556,067.60 and 242,733.90 is: 364,102.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,709.78 : 556,067.60 = 242,733.90 : x
  2. Step 2: Convert to fraction form
    370,709.78/556,067.60 = 242,733.90/x
  3. Step 3: Cross multiply
    370,709.78x = 556,067.60 × 242,733.90
  4. Step 4: Simplify right side
    370,709.78x = 134,976,457,211.64
  5. Step 5: Solve for x
    x = 134,976,457,211.64/370,709.78
  6. Step 6: Final answer
    x = 364,102.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.