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Finding the Fourth Proportional to 73,543,578.51, 101,494,725.88 and 40,503,819.10

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Solution

The fourth proportional to 73,543,578.51, 101,494,725.88 and 40,503,819.10 is: 55,897,796.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,543,578.51 : 101,494,725.88 = 40,503,819.10 : x
  2. Step 2: Convert to fraction form
    73,543,578.51/101,494,725.88 = 40,503,819.10/x
  3. Step 3: Cross multiply
    73,543,578.51x = 101,494,725.88 × 40,503,819.10
  4. Step 4: Simplify right side
    73,543,578.51x = 4,110,924,016,672,574
  5. Step 5: Solve for x
    x = 4,110,924,016,672,574/73,543,578.51
  6. Step 6: Final answer
    x = 55,897,796.92

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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.