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Finding the Fourth Proportional to 100,809,316.05, 151,213,974.08 and 100,809,316.05

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Solution

The fourth proportional to 100,809,316.05, 151,213,974.08 and 100,809,316.05 is: 151,213,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,809,316.05 : 151,213,974.08 = 100,809,316.05 : x
  2. Step 2: Convert to fraction form
    100,809,316.05/151,213,974.08 = 100,809,316.05/x
  3. Step 3: Cross multiply
    100,809,316.05x = 151,213,974.08 × 100,809,316.05
  4. Step 4: Simplify right side
    100,809,316.05x = 15,243,777,303,703,180
  5. Step 5: Solve for x
    x = 15,243,777,303,703,180/100,809,316.05
  6. Step 6: Final answer
    x = 151,213,974.08

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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.