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Finding the Fourth Proportional to 142,532.40, 213,748.20 and 49,016.40

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Solution

The fourth proportional to 142,532.40, 213,748.20 and 49,016.40 is: 73,507.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,532.40 : 213,748.20 = 49,016.40 : x
  2. Step 2: Convert to fraction form
    142,532.40/213,748.20 = 49,016.40/x
  3. Step 3: Cross multiply
    142,532.40x = 213,748.20 × 49,016.40
  4. Step 4: Simplify right side
    142,532.40x = 10,477,167,270.48
  5. Step 5: Solve for x
    x = 10,477,167,270.48/142,532.40
  6. Step 6: Final answer
    x = 73,507.27

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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.