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Finding the Fourth Proportional to 289,017.92, 433,568.34 and 89,353.91

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Solution

The fourth proportional to 289,017.92, 433,568.34 and 89,353.91 is: 134,043.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,017.92 : 433,568.34 = 89,353.91 : x
  2. Step 2: Convert to fraction form
    289,017.92/433,568.34 = 89,353.91/x
  3. Step 3: Cross multiply
    289,017.92x = 433,568.34 × 89,353.91
  4. Step 4: Simplify right side
    289,017.92x = 38,741,024,263.37
  5. Step 5: Solve for x
    x = 38,741,024,263.37/289,017.92
  6. Step 6: Final answer
    x = 134,043.68

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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.