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Finding the Fourth Proportional to 171,776.67, 257,661.96 and 70,552.80

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Solution

The fourth proportional to 171,776.67, 257,661.96 and 70,552.80 is: 105,827.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,776.67 : 257,661.96 = 70,552.80 : x
  2. Step 2: Convert to fraction form
    171,776.67/257,661.96 = 70,552.80/x
  3. Step 3: Cross multiply
    171,776.67x = 257,661.96 × 70,552.80
  4. Step 4: Simplify right side
    171,776.67x = 18,178,772,731.49
  5. Step 5: Solve for x
    x = 18,178,772,731.49/171,776.67
  6. Step 6: Final answer
    x = 105,827.95

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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.