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Finding the Fourth Proportional to 201,917.60, 302,876.40 and 186,711.20

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Solution

The fourth proportional to 201,917.60, 302,876.40 and 186,711.20 is: 280,066.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,917.60 : 302,876.40 = 186,711.20 : x
  2. Step 2: Convert to fraction form
    201,917.60/302,876.40 = 186,711.20/x
  3. Step 3: Cross multiply
    201,917.60x = 302,876.40 × 186,711.20
  4. Step 4: Simplify right side
    201,917.60x = 56,550,416,095.68
  5. Step 5: Solve for x
    x = 56,550,416,095.68/201,917.60
  6. Step 6: Final answer
    x = 280,066.80

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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.