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Finding the Fourth Proportional to 171,828.70, 257,807.85 and 83,160.70

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Solution

The fourth proportional to 171,828.70, 257,807.85 and 83,160.70 is: 124,772.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,828.70 : 257,807.85 = 83,160.70 : x
  2. Step 2: Convert to fraction form
    171,828.70/257,807.85 = 83,160.70/x
  3. Step 3: Cross multiply
    171,828.70x = 257,807.85 × 83,160.70
  4. Step 4: Simplify right side
    171,828.70x = 21,439,481,271.50
  5. Step 5: Solve for x
    x = 21,439,481,271.50/171,828.70
  6. Step 6: Final answer
    x = 124,772.41

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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.