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Finding the Fourth Proportional to 99,960,527.88, 149,959,561.68 and 45,376,944.48

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Solution

The fourth proportional to 99,960,527.88, 149,959,561.68 and 45,376,944.48 is: 68,073,937.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,960,527.88 : 149,959,561.68 = 45,376,944.48 : x
  2. Step 2: Convert to fraction form
    99,960,527.88/149,959,561.68 = 45,376,944.48/x
  3. Step 3: Cross multiply
    99,960,527.88x = 149,959,561.68 × 45,376,944.48
  4. Step 4: Simplify right side
    99,960,527.88x = 6,804,706,704,598,495
  5. Step 5: Solve for x
    x = 6,804,706,704,598,495/99,960,527.88
  6. Step 6: Final answer
    x = 68,073,937.27

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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.