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Finding the Fourth Proportional to 101,041,891.32, 151,433,978.13 and 49,238,859.72

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Solution

The fourth proportional to 101,041,891.32, 151,433,978.13 and 49,238,859.72 is: 73,795,495.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,041,891.32 : 151,433,978.13 = 49,238,859.72 : x
  2. Step 2: Convert to fraction form
    101,041,891.32/151,433,978.13 = 49,238,859.72/x
  3. Step 3: Cross multiply
    101,041,891.32x = 151,433,978.13 × 49,238,859.72
  4. Step 4: Simplify right side
    101,041,891.32x = 7,456,436,405,984,618
  5. Step 5: Solve for x
    x = 7,456,436,405,984,618/101,041,891.32
  6. Step 6: Final answer
    x = 73,795,495.20

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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.