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Finding the Fourth Proportional to 178,652.88, 267,985.35 and 89,857.98

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Solution

The fourth proportional to 178,652.88, 267,985.35 and 89,857.98 is: 134,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,652.88 : 267,985.35 = 89,857.98 : x
  2. Step 2: Convert to fraction form
    178,652.88/267,985.35 = 89,857.98/x
  3. Step 3: Cross multiply
    178,652.88x = 267,985.35 × 89,857.98
  4. Step 4: Simplify right side
    178,652.88x = 24,080,622,220.59
  5. Step 5: Solve for x
    x = 24,080,622,220.59/178,652.88
  6. Step 6: Final answer
    x = 134,790.00

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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.