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Finding the Fourth Proportional to 171,548.76, 257,315.22 and 46,889.40

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Solution

The fourth proportional to 171,548.76, 257,315.22 and 46,889.40 is: 70,331.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,548.76 : 257,315.22 = 46,889.40 : x
  2. Step 2: Convert to fraction form
    171,548.76/257,315.22 = 46,889.40/x
  3. Step 3: Cross multiply
    171,548.76x = 257,315.22 × 46,889.40
  4. Step 4: Simplify right side
    171,548.76x = 12,065,356,276.67
  5. Step 5: Solve for x
    x = 12,065,356,276.67/171,548.76
  6. Step 6: Final answer
    x = 70,331.94

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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.