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Finding the Fourth Proportional to 171,635.40, 257,453.10 and 97,907.40

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Solution

The fourth proportional to 171,635.40, 257,453.10 and 97,907.40 is: 146,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,635.40 : 257,453.10 = 97,907.40 : x
  2. Step 2: Convert to fraction form
    171,635.40/257,453.10 = 97,907.40/x
  3. Step 3: Cross multiply
    171,635.40x = 257,453.10 × 97,907.40
  4. Step 4: Simplify right side
    171,635.40x = 25,206,563,642.94
  5. Step 5: Solve for x
    x = 25,206,563,642.94/171,635.40
  6. Step 6: Final answer
    x = 146,861.10

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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.