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Finding the Fourth Proportional to 208,673.20, 313,009.80 and 60,929.20

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Solution

The fourth proportional to 208,673.20, 313,009.80 and 60,929.20 is: 91,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,673.20 : 313,009.80 = 60,929.20 : x
  2. Step 2: Convert to fraction form
    208,673.20/313,009.80 = 60,929.20/x
  3. Step 3: Cross multiply
    208,673.20x = 313,009.80 × 60,929.20
  4. Step 4: Simplify right side
    208,673.20x = 19,071,436,706.16
  5. Step 5: Solve for x
    x = 19,071,436,706.16/208,673.20
  6. Step 6: Final answer
    x = 91,393.80

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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.