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Finding the Fourth Proportional to 219,383.40, 328,815.90 and 93,023.40

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Solution

The fourth proportional to 219,383.40, 328,815.90 and 93,023.40 is: 139,425.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,383.40 : 328,815.90 = 93,023.40 : x
  2. Step 2: Convert to fraction form
    219,383.40/328,815.90 = 93,023.40/x
  3. Step 3: Cross multiply
    219,383.40x = 328,815.90 × 93,023.40
  4. Step 4: Simplify right side
    219,383.40x = 30,587,572,992.06
  5. Step 5: Solve for x
    x = 30,587,572,992.06/219,383.40
  6. Step 6: Final answer
    x = 139,425.19

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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.