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Finding the Fourth Proportional to 252,673.28, 348,649.49 and 145,223.24

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Solution

The fourth proportional to 252,673.28, 348,649.49 and 145,223.24 is: 200,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,673.28 : 348,649.49 = 145,223.24 : x
  2. Step 2: Convert to fraction form
    252,673.28/348,649.49 = 145,223.24/x
  3. Step 3: Cross multiply
    252,673.28x = 348,649.49 × 145,223.24
  4. Step 4: Simplify right side
    252,673.28x = 50,632,007,327.47
  5. Step 5: Solve for x
    x = 50,632,007,327.47/252,673.28
  6. Step 6: Final answer
    x = 200,385.28

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1.5x scale

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.