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Finding the Fourth Proportional to 346,167.80, 519,251.70 and 135,812.60

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Solution

The fourth proportional to 346,167.80, 519,251.70 and 135,812.60 is: 203,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,167.80 : 519,251.70 = 135,812.60 : x
  2. Step 2: Convert to fraction form
    346,167.80/519,251.70 = 135,812.60/x
  3. Step 3: Cross multiply
    346,167.80x = 519,251.70 × 135,812.60
  4. Step 4: Simplify right side
    346,167.80x = 70,520,923,431.42
  5. Step 5: Solve for x
    x = 70,520,923,431.42/346,167.80
  6. Step 6: Final answer
    x = 203,718.90

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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.