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Finding the Fourth Proportional to 237,646.20, 356,436.90 and 71,434.20

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Solution

The fourth proportional to 237,646.20, 356,436.90 and 71,434.20 is: 107,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,646.20 : 356,436.90 = 71,434.20 : x
  2. Step 2: Convert to fraction form
    237,646.20/356,436.90 = 71,434.20/x
  3. Step 3: Cross multiply
    237,646.20x = 356,436.90 × 71,434.20
  4. Step 4: Simplify right side
    237,646.20x = 25,461,784,801.98
  5. Step 5: Solve for x
    x = 25,461,784,801.98/237,646.20
  6. Step 6: Final answer
    x = 107,141.56

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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.