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Finding the Fourth Proportional to 171,689.66, 257,571.42 and 57,848.79

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Solution

The fourth proportional to 171,689.66, 257,571.42 and 57,848.79 is: 86,785.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,689.66 : 257,571.42 = 57,848.79 : x
  2. Step 2: Convert to fraction form
    171,689.66/257,571.42 = 57,848.79/x
  3. Step 3: Cross multiply
    171,689.66x = 257,571.42 × 57,848.79
  4. Step 4: Simplify right side
    171,689.66x = 14,900,194,985.58
  5. Step 5: Solve for x
    x = 14,900,194,985.58/171,689.66
  6. Step 6: Final answer
    x = 86,785.63

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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.