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Finding the Fourth Proportional to 306,564, 459,915.21 and 93,350.99

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Solution

The fourth proportional to 306,564, 459,915.21 and 93,350.99 is: 140,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,564 : 459,915.21 = 93,350.99 : x
  2. Step 2: Convert to fraction form
    306,564/459,915.21 = 93,350.99/x
  3. Step 3: Cross multiply
    306,564x = 459,915.21 × 93,350.99
  4. Step 4: Simplify right side
    306,564x = 42,933,537,869.98
  5. Step 5: Solve for x
    x = 42,933,537,869.98/306,564
  6. Step 6: Final answer
    x = 140,047.55

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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.