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Finding the Fourth Proportional to 171,611.66, 257,389.95 and 46,923.50

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Solution

The fourth proportional to 171,611.66, 257,389.95 and 46,923.50 is: 70,377.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,611.66 : 257,389.95 = 46,923.50 : x
  2. Step 2: Convert to fraction form
    171,611.66/257,389.95 = 46,923.50/x
  3. Step 3: Cross multiply
    171,611.66x = 257,389.95 × 46,923.50
  4. Step 4: Simplify right side
    171,611.66x = 12,077,638,138.26
  5. Step 5: Solve for x
    x = 12,077,638,138.26/171,611.66
  6. Step 6: Final answer
    x = 70,377.72

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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.