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Finding the Fourth Proportional to 89,125.72, 133,688.76 and 36,525.76

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Solution

The fourth proportional to 89,125.72, 133,688.76 and 36,525.76 is: 54,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,125.72 : 133,688.76 = 36,525.76 : x
  2. Step 2: Convert to fraction form
    89,125.72/133,688.76 = 36,525.76/x
  3. Step 3: Cross multiply
    89,125.72x = 133,688.76 × 36,525.76
  4. Step 4: Simplify right side
    89,125.72x = 4,883,083,562.46
  5. Step 5: Solve for x
    x = 4,883,083,562.46/89,125.72
  6. Step 6: Final answer
    x = 54,788.71

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1.5x scale

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.