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Finding the Fourth Proportional to 35,978,191.08, 53,880,812.10 and 20,578,795.08

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Solution

The fourth proportional to 35,978,191.08, 53,880,812.10 and 20,578,795.08 is: 30,818,730.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,978,191.08 : 53,880,812.10 = 20,578,795.08 : x
  2. Step 2: Convert to fraction form
    35,978,191.08/53,880,812.10 = 20,578,795.08/x
  3. Step 3: Cross multiply
    35,978,191.08x = 53,880,812.10 × 20,578,795.08
  4. Step 4: Simplify right side
    35,978,191.08x = 1,108,802,190,949,884.38
  5. Step 5: Solve for x
    x = 1,108,802,190,949,884.38/35,978,191.08
  6. Step 6: Final answer
    x = 30,818,730.95

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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.