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Finding the Fourth Proportional to 388,658.92, 583,320.68 and 152,167.67

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Solution

The fourth proportional to 388,658.92, 583,320.68 and 152,167.67 is: 228,381.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,658.92 : 583,320.68 = 152,167.67 : x
  2. Step 2: Convert to fraction form
    388,658.92/583,320.68 = 152,167.67/x
  3. Step 3: Cross multiply
    388,658.92x = 583,320.68 × 152,167.67
  4. Step 4: Simplify right side
    388,658.92x = 88,762,548,738.42
  5. Step 5: Solve for x
    x = 88,762,548,738.42/388,658.92
  6. Step 6: Final answer
    x = 228,381.61

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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.