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Finding the Fourth Proportional to 219,780.80, 329,671.20 and 62,007.20

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Solution

The fourth proportional to 219,780.80, 329,671.20 and 62,007.20 is: 93,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,780.80 : 329,671.20 = 62,007.20 : x
  2. Step 2: Convert to fraction form
    219,780.80/329,671.20 = 62,007.20/x
  3. Step 3: Cross multiply
    219,780.80x = 329,671.20 × 62,007.20
  4. Step 4: Simplify right side
    219,780.80x = 20,441,988,032.64
  5. Step 5: Solve for x
    x = 20,441,988,032.64/219,780.80
  6. Step 6: Final answer
    x = 93,010.80

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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.