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Finding the Fourth Proportional to 219,456.89, 302,850.53 and 118,854.89

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Solution

The fourth proportional to 219,456.89, 302,850.53 and 118,854.89 is: 164,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,456.89 : 302,850.53 = 118,854.89 : x
  2. Step 2: Convert to fraction form
    219,456.89/302,850.53 = 118,854.89/x
  3. Step 3: Cross multiply
    219,456.89x = 302,850.53 × 118,854.89
  4. Step 4: Simplify right side
    219,456.89x = 35,995,266,429.59
  5. Step 5: Solve for x
    x = 35,995,266,429.59/219,456.89
  6. Step 6: Final answer
    x = 164,019.76

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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.