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Finding the Fourth Proportional to 269,803.60, 372,329.51 and 148,945.05

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Solution

The fourth proportional to 269,803.60, 372,329.51 and 148,945.05 is: 205,544.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,803.60 : 372,329.51 = 148,945.05 : x
  2. Step 2: Convert to fraction form
    269,803.60/372,329.51 = 148,945.05/x
  3. Step 3: Cross multiply
    269,803.60x = 372,329.51 × 148,945.05
  4. Step 4: Simplify right side
    269,803.60x = 55,456,637,483.43
  5. Step 5: Solve for x
    x = 55,456,637,483.43/269,803.60
  6. Step 6: Final answer
    x = 205,544.47

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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.