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Finding the Fourth Proportional to 269,881,020.72, 404,821,533.96 and 65,409,095.76

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Solution

The fourth proportional to 269,881,020.72, 404,821,533.96 and 65,409,095.76 is: 98,113,644.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,881,020.72 : 404,821,533.96 = 65,409,095.76 : x
  2. Step 2: Convert to fraction form
    269,881,020.72/404,821,533.96 = 65,409,095.76/x
  3. Step 3: Cross multiply
    269,881,020.72x = 404,821,533.96 × 65,409,095.76
  4. Step 4: Simplify right side
    269,881,020.72x = 26,479,010,480,499,728
  5. Step 5: Solve for x
    x = 26,479,010,480,499,728/269,881,020.72
  6. Step 6: Final answer
    x = 98,113,644.34

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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.