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Finding the Fourth Proportional to 171,352.70, 257,000.70 and 57,499.10

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Solution

The fourth proportional to 171,352.70, 257,000.70 and 57,499.10 is: 86,239.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,352.70 : 257,000.70 = 57,499.10 : x
  2. Step 2: Convert to fraction form
    171,352.70/257,000.70 = 57,499.10/x
  3. Step 3: Cross multiply
    171,352.70x = 257,000.70 × 57,499.10
  4. Step 4: Simplify right side
    171,352.70x = 14,777,308,949.37
  5. Step 5: Solve for x
    x = 14,777,308,949.37/171,352.70
  6. Step 6: Final answer
    x = 86,239.14

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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.