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Finding the Fourth Proportional to 157,966,094.72, 217,991,599.04 and 88,351,309.44

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Solution

The fourth proportional to 157,966,094.72, 217,991,599.04 and 88,351,309.44 is: 121,923,905.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,966,094.72 : 217,991,599.04 = 88,351,309.44 : x
  2. Step 2: Convert to fraction form
    157,966,094.72/217,991,599.04 = 88,351,309.44/x
  3. Step 3: Cross multiply
    157,966,094.72x = 217,991,599.04 × 88,351,309.44
  4. Step 4: Simplify right side
    157,966,094.72x = 19,259,843,222,103,444
  5. Step 5: Solve for x
    x = 19,259,843,222,103,444/157,966,094.72
  6. Step 6: Final answer
    x = 121,923,905.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.