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Finding the Fourth Proportional to 118,963.80, 178,453.80 and 37,904.40

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Solution

The fourth proportional to 118,963.80, 178,453.80 and 37,904.40 is: 56,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,963.80 : 178,453.80 = 37,904.40 : x
  2. Step 2: Convert to fraction form
    118,963.80/178,453.80 = 37,904.40/x
  3. Step 3: Cross multiply
    118,963.80x = 178,453.80 × 37,904.40
  4. Step 4: Simplify right side
    118,963.80x = 6,764,184,216.72
  5. Step 5: Solve for x
    x = 6,764,184,216.72/118,963.80
  6. Step 6: Final answer
    x = 56,859.18

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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.