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Finding the Fourth Proportional to 171,938.33, 257,909.18 and 51,996.23

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Solution

The fourth proportional to 171,938.33, 257,909.18 and 51,996.23 is: 77,994.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,938.33 : 257,909.18 = 51,996.23 : x
  2. Step 2: Convert to fraction form
    171,938.33/257,909.18 = 51,996.23/x
  3. Step 3: Cross multiply
    171,938.33x = 257,909.18 × 51,996.23
  4. Step 4: Simplify right side
    171,938.33x = 13,410,303,492.86
  5. Step 5: Solve for x
    x = 13,410,303,492.86/171,938.33
  6. Step 6: Final answer
    x = 77,994.85

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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.