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Finding the Fourth Proportional to 171,336.40, 257,023.80 and 53,006.80

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Solution

The fourth proportional to 171,336.40, 257,023.80 and 53,006.80 is: 79,516.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,336.40 : 257,023.80 = 53,006.80 : x
  2. Step 2: Convert to fraction form
    171,336.40/257,023.80 = 53,006.80/x
  3. Step 3: Cross multiply
    171,336.40x = 257,023.80 × 53,006.80
  4. Step 4: Simplify right side
    171,336.40x = 13,624,009,161.84
  5. Step 5: Solve for x
    x = 13,624,009,161.84/171,336.40
  6. Step 6: Final answer
    x = 79,516.14

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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.