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Finding the Fourth Proportional to 14,978,059.20, 22,467,088.80 and 8,931,441.60

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Solution

The fourth proportional to 14,978,059.20, 22,467,088.80 and 8,931,441.60 is: 13,397,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,978,059.20 : 22,467,088.80 = 8,931,441.60 : x
  2. Step 2: Convert to fraction form
    14,978,059.20/22,467,088.80 = 8,931,441.60/x
  3. Step 3: Cross multiply
    14,978,059.20x = 22,467,088.80 × 8,931,441.60
  4. Step 4: Simplify right side
    14,978,059.20x = 200,663,491,539,214.09
  5. Step 5: Solve for x
    x = 200,663,491,539,214.09/14,978,059.20
  6. Step 6: Final answer
    x = 13,397,162.40

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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.