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Finding the Fourth Proportional to 171,607.10, 257,483.55 and 82,814.90

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Solution

The fourth proportional to 171,607.10, 257,483.55 and 82,814.90 is: 124,257.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,607.10 : 257,483.55 = 82,814.90 : x
  2. Step 2: Convert to fraction form
    171,607.10/257,483.55 = 82,814.90/x
  3. Step 3: Cross multiply
    171,607.10x = 257,483.55 × 82,814.90
  4. Step 4: Simplify right side
    171,607.10x = 21,323,474,444.90
  5. Step 5: Solve for x
    x = 21,323,474,444.90/171,607.10
  6. Step 6: Final answer
    x = 124,257.53

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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.