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Finding the Fourth Proportional to 60,376.96, 90,631.05 and 51,060.34

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Solution

The fourth proportional to 60,376.96, 90,631.05 and 51,060.34 is: 76,646.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,376.96 : 90,631.05 = 51,060.34 : x
  2. Step 2: Convert to fraction form
    60,376.96/90,631.05 = 51,060.34/x
  3. Step 3: Cross multiply
    60,376.96x = 90,631.05 × 51,060.34
  4. Step 4: Simplify right side
    60,376.96x = 4,627,652,000.98
  5. Step 5: Solve for x
    x = 4,627,652,000.98/60,376.96
  6. Step 6: Final answer
    x = 76,646.00

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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.