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Finding the Fourth Proportional to 171,811.63, 257,655.66 and 59,461.35

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Solution

The fourth proportional to 171,811.63, 257,655.66 and 59,461.35 is: 89,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,811.63 : 257,655.66 = 59,461.35 : x
  2. Step 2: Convert to fraction form
    171,811.63/257,655.66 = 59,461.35/x
  3. Step 3: Cross multiply
    171,811.63x = 257,655.66 × 59,461.35
  4. Step 4: Simplify right side
    171,811.63x = 15,320,553,378.74
  5. Step 5: Solve for x
    x = 15,320,553,378.74/171,811.63
  6. Step 6: Final answer
    x = 89,170.64

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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.