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Finding the Fourth Proportional to 142,744.40, 214,066.20 and 49,228.40

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Solution

The fourth proportional to 142,744.40, 214,066.20 and 49,228.40 is: 73,825.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,744.40 : 214,066.20 = 49,228.40 : x
  2. Step 2: Convert to fraction form
    142,744.40/214,066.20 = 49,228.40/x
  3. Step 3: Cross multiply
    142,744.40x = 214,066.20 × 49,228.40
  4. Step 4: Simplify right side
    142,744.40x = 10,538,136,520.08
  5. Step 5: Solve for x
    x = 10,538,136,520.08/142,744.40
  6. Step 6: Final answer
    x = 73,825.22

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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.