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Finding the Fourth Proportional to 57,956,000.60, 86,934,000.90 and 15,405,728.60

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Solution

The fourth proportional to 57,956,000.60, 86,934,000.90 and 15,405,728.60 is: 23,108,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,956,000.60 : 86,934,000.90 = 15,405,728.60 : x
  2. Step 2: Convert to fraction form
    57,956,000.60/86,934,000.90 = 15,405,728.60/x
  3. Step 3: Cross multiply
    57,956,000.60x = 86,934,000.90 × 15,405,728.60
  4. Step 4: Simplify right side
    57,956,000.60x = 1,339,281,623,977,555.75
  5. Step 5: Solve for x
    x = 1,339,281,623,977,555.75/57,956,000.60
  6. Step 6: Final answer
    x = 23,108,592.90

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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.