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Finding the Fourth Proportional to 299,599,903.72, 449,272,248.54 and 117,719,499.88

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Solution

The fourth proportional to 299,599,903.72, 449,272,248.54 and 117,719,499.88 is: 176,529,110.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,599,903.72 : 449,272,248.54 = 117,719,499.88 : x
  2. Step 2: Convert to fraction form
    299,599,903.72/449,272,248.54 = 117,719,499.88/x
  3. Step 3: Cross multiply
    299,599,903.72x = 449,272,248.54 × 117,719,499.88
  4. Step 4: Simplify right side
    299,599,903.72x = 52,888,104,408,091,864
  5. Step 5: Solve for x
    x = 52,888,104,408,091,864/299,599,903.72
  6. Step 6: Final answer
    x = 176,529,110.16

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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.