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Finding the Fourth Proportional to 531,803,289.20, 797,779,583.40 and 168,259,737.20

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Solution

The fourth proportional to 531,803,289.20, 797,779,583.40 and 168,259,737.20 is: 252,413,224.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,803,289.20 : 797,779,583.40 = 168,259,737.20 : x
  2. Step 2: Convert to fraction form
    531,803,289.20/797,779,583.40 = 168,259,737.20/x
  3. Step 3: Cross multiply
    531,803,289.20x = 797,779,583.40 × 168,259,737.20
  4. Step 4: Simplify right side
    531,803,289.20x = 134,234,183,046,409,472
  5. Step 5: Solve for x
    x = 134,234,183,046,409,472/531,803,289.20
  6. Step 6: Final answer
    x = 252,413,224.54

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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.