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Finding the Fourth Proportional to 450,516.48, 675,674.88 and 134,931.84

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Solution

The fourth proportional to 450,516.48, 675,674.88 and 134,931.84 is: 202,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,516.48 : 675,674.88 = 134,931.84 : x
  2. Step 2: Convert to fraction form
    450,516.48/675,674.88 = 134,931.84/x
  3. Step 3: Cross multiply
    450,516.48x = 675,674.88 × 134,931.84
  4. Step 4: Simplify right side
    450,516.48x = 91,170,054,800.18
  5. Step 5: Solve for x
    x = 91,170,054,800.18/450,516.48
  6. Step 6: Final answer
    x = 202,367.86

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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.