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Finding the Fourth Proportional to 306,050.40, 459,140.40 and 92,800.80

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Solution

The fourth proportional to 306,050.40, 459,140.40 and 92,800.80 is: 139,220.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,050.40 : 459,140.40 = 92,800.80 : x
  2. Step 2: Convert to fraction form
    306,050.40/459,140.40 = 92,800.80/x
  3. Step 3: Cross multiply
    306,050.40x = 459,140.40 × 92,800.80
  4. Step 4: Simplify right side
    306,050.40x = 42,608,596,432.32
  5. Step 5: Solve for x
    x = 42,608,596,432.32/306,050.40
  6. Step 6: Final answer
    x = 139,220.85

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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.