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Finding the Fourth Proportional to 89,661.65, 134,510.20 and 26,482.87

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Solution

The fourth proportional to 89,661.65, 134,510.20 and 26,482.87 is: 39,729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,661.65 : 134,510.20 = 26,482.87 : x
  2. Step 2: Convert to fraction form
    89,661.65/134,510.20 = 26,482.87/x
  3. Step 3: Cross multiply
    89,661.65x = 134,510.20 × 26,482.87
  4. Step 4: Simplify right side
    89,661.65x = 3,562,216,007.86
  5. Step 5: Solve for x
    x = 3,562,216,007.86/89,661.65
  6. Step 6: Final answer
    x = 39,729.54

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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.