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Finding the Fourth Proportional to 605,109.33, 907,762.50 and 178,688.23

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Solution

The fourth proportional to 605,109.33, 907,762.50 and 178,688.23 is: 268,061.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,109.33 : 907,762.50 = 178,688.23 : x
  2. Step 2: Convert to fraction form
    605,109.33/907,762.50 = 178,688.23/x
  3. Step 3: Cross multiply
    605,109.33x = 907,762.50 × 178,688.23
  4. Step 4: Simplify right side
    605,109.33x = 162,206,472,115.97
  5. Step 5: Solve for x
    x = 162,206,472,115.97/605,109.33
  6. Step 6: Final answer
    x = 268,061.43

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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.