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Finding the Fourth Proportional to 171,779.02, 257,741.97 and 88,731.34

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Solution

The fourth proportional to 171,779.02, 257,741.97 and 88,731.34 is: 133,134.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,779.02 : 257,741.97 = 88,731.34 : x
  2. Step 2: Convert to fraction form
    171,779.02/257,741.97 = 88,731.34/x
  3. Step 3: Cross multiply
    171,779.02x = 257,741.97 × 88,731.34
  4. Step 4: Simplify right side
    171,779.02x = 22,869,788,639.97
  5. Step 5: Solve for x
    x = 22,869,788,639.97/171,779.02
  6. Step 6: Final answer
    x = 133,134.94

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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.