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Finding the Fourth Proportional to 339,624.42, 468,686.55 and 186,676.75

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Solution

The fourth proportional to 339,624.42, 468,686.55 and 186,676.75 is: 257,616.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,624.42 : 468,686.55 = 186,676.75 : x
  2. Step 2: Convert to fraction form
    339,624.42/468,686.55 = 186,676.75/x
  3. Step 3: Cross multiply
    339,624.42x = 468,686.55 × 186,676.75
  4. Step 4: Simplify right side
    339,624.42x = 87,492,881,922.71
  5. Step 5: Solve for x
    x = 87,492,881,922.71/339,624.42
  6. Step 6: Final answer
    x = 257,616.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.