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Finding the Fourth Proportional to 171,826.61, 257,655.59 and 70,606.33

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Solution

The fourth proportional to 171,826.61, 257,655.59 and 70,606.33 is: 105,874.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,826.61 : 257,655.59 = 70,606.33 : x
  2. Step 2: Convert to fraction form
    171,826.61/257,655.59 = 70,606.33/x
  3. Step 3: Cross multiply
    171,826.61x = 257,655.59 × 70,606.33
  4. Step 4: Simplify right side
    171,826.61x = 18,192,114,325.61
  5. Step 5: Solve for x
    x = 18,192,114,325.61/171,826.61
  6. Step 6: Final answer
    x = 105,874.84

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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.