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Finding the Fourth Proportional to 231,322.60, 346,983.90 and 142,676.20

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Solution

The fourth proportional to 231,322.60, 346,983.90 and 142,676.20 is: 214,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,322.60 : 346,983.90 = 142,676.20 : x
  2. Step 2: Convert to fraction form
    231,322.60/346,983.90 = 142,676.20/x
  3. Step 3: Cross multiply
    231,322.60x = 346,983.90 × 142,676.20
  4. Step 4: Simplify right side
    231,322.60x = 49,506,344,313.18
  5. Step 5: Solve for x
    x = 49,506,344,313.18/231,322.60
  6. Step 6: Final answer
    x = 214,014.30

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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.