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Finding the Fourth Proportional to 272,958.80, 409,860.60 and 148,542.80

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Solution

The fourth proportional to 272,958.80, 409,860.60 and 148,542.80 is: 223,044.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,958.80 : 409,860.60 = 148,542.80 : x
  2. Step 2: Convert to fraction form
    272,958.80/409,860.60 = 148,542.80/x
  3. Step 3: Cross multiply
    272,958.80x = 409,860.60 × 148,542.80
  4. Step 4: Simplify right side
    272,958.80x = 60,881,841,133.68
  5. Step 5: Solve for x
    x = 60,881,841,133.68/272,958.80
  6. Step 6: Final answer
    x = 223,044.07

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1.5x scale

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.