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Finding the Fourth Proportional to 171,688.40, 257,567.48 and 59,372.88

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Solution

The fourth proportional to 171,688.40, 257,567.48 and 59,372.88 is: 89,071.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,688.40 : 257,567.48 = 59,372.88 : x
  2. Step 2: Convert to fraction form
    171,688.40/257,567.48 = 59,372.88/x
  3. Step 3: Cross multiply
    171,688.40x = 257,567.48 × 59,372.88
  4. Step 4: Simplify right side
    171,688.40x = 15,292,523,081.94
  5. Step 5: Solve for x
    x = 15,292,523,081.94/171,688.40
  6. Step 6: Final answer
    x = 89,071.38

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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.