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Finding the Fourth Proportional to 194,630.60, 291,945.90 and 186,854.60

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Solution

The fourth proportional to 194,630.60, 291,945.90 and 186,854.60 is: 280,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,630.60 : 291,945.90 = 186,854.60 : x
  2. Step 2: Convert to fraction form
    194,630.60/291,945.90 = 186,854.60/x
  3. Step 3: Cross multiply
    194,630.60x = 291,945.90 × 186,854.60
  4. Step 4: Simplify right side
    194,630.60x = 54,551,434,366.14
  5. Step 5: Solve for x
    x = 54,551,434,366.14/194,630.60
  6. Step 6: Final answer
    x = 280,281.90

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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.