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Finding the Fourth Proportional to 218,874.60, 328,322.70 and 113,898.60

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Solution

The fourth proportional to 218,874.60, 328,322.70 and 113,898.60 is: 170,853.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,874.60 : 328,322.70 = 113,898.60 : x
  2. Step 2: Convert to fraction form
    218,874.60/328,322.70 = 113,898.60/x
  3. Step 3: Cross multiply
    218,874.60x = 328,322.70 × 113,898.60
  4. Step 4: Simplify right side
    218,874.60x = 37,395,495,878.22
  5. Step 5: Solve for x
    x = 37,395,495,878.22/218,874.60
  6. Step 6: Final answer
    x = 170,853.52

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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.