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Finding the Fourth Proportional to 435,658.32, 653,527.85 and 169,438.86

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Solution

The fourth proportional to 435,658.32, 653,527.85 and 169,438.86 is: 254,173.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,658.32 : 653,527.85 = 169,438.86 : x
  2. Step 2: Convert to fraction form
    435,658.32/653,527.85 = 169,438.86/x
  3. Step 3: Cross multiply
    435,658.32x = 653,527.85 × 169,438.86
  4. Step 4: Simplify right side
    435,658.32x = 110,733,013,035.06
  5. Step 5: Solve for x
    x = 110,733,013,035.06/435,658.32
  6. Step 6: Final answer
    x = 254,173.99

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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.