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Finding the Fourth Proportional to 173,387.56, 260,156.46 and 61,147.98

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Solution

The fourth proportional to 173,387.56, 260,156.46 and 61,147.98 is: 91,748.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,387.56 : 260,156.46 = 61,147.98 : x
  2. Step 2: Convert to fraction form
    173,387.56/260,156.46 = 61,147.98/x
  3. Step 3: Cross multiply
    173,387.56x = 260,156.46 × 61,147.98
  4. Step 4: Simplify right side
    173,387.56x = 15,908,042,012.95
  5. Step 5: Solve for x
    x = 15,908,042,012.95/173,387.56
  6. Step 6: Final answer
    x = 91,748.46

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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.