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Finding the Fourth Proportional to 171,632.40, 257,467.80 and 53,302.80

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Solution

The fourth proportional to 171,632.40, 257,467.80 and 53,302.80 is: 79,960.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,632.40 : 257,467.80 = 53,302.80 : x
  2. Step 2: Convert to fraction form
    171,632.40/257,467.80 = 53,302.80/x
  3. Step 3: Cross multiply
    171,632.40x = 257,467.80 × 53,302.80
  4. Step 4: Simplify right side
    171,632.40x = 13,723,754,649.84
  5. Step 5: Solve for x
    x = 13,723,754,649.84/171,632.40
  6. Step 6: Final answer
    x = 79,960.16

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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.