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Finding the Fourth Proportional to 171,517.72, 257,264.16 and 57,666.28

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Solution

The fourth proportional to 171,517.72, 257,264.16 and 57,666.28 is: 86,495.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,517.72 : 257,264.16 = 57,666.28 : x
  2. Step 2: Convert to fraction form
    171,517.72/257,264.16 = 57,666.28/x
  3. Step 3: Cross multiply
    171,517.72x = 257,264.16 × 57,666.28
  4. Step 4: Simplify right side
    171,517.72x = 14,835,467,084.52
  5. Step 5: Solve for x
    x = 14,835,467,084.52/171,517.72
  6. Step 6: Final answer
    x = 86,495.24

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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.