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Finding the Fourth Proportional to 123,430,156.20, 185,145,234.30 and 123,430,156.20

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Solution

The fourth proportional to 123,430,156.20, 185,145,234.30 and 123,430,156.20 is: 185,145,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,430,156.20 : 185,145,234.30 = 123,430,156.20 : x
  2. Step 2: Convert to fraction form
    123,430,156.20/185,145,234.30 = 123,430,156.20/x
  3. Step 3: Cross multiply
    123,430,156.20x = 185,145,234.30 × 123,430,156.20
  4. Step 4: Simplify right side
    123,430,156.20x = 22,852,505,189,334,600
  5. Step 5: Solve for x
    x = 22,852,505,189,334,600/123,430,156.20
  6. Step 6: Final answer
    x = 185,145,234.30

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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.