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Finding the Fourth Proportional to 99,631,024.80, 149,509,522.80 and 58,690,384.80

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Solution

The fourth proportional to 99,631,024.80, 149,509,522.80 and 58,690,384.80 is: 88,072,680.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,631,024.80 : 149,509,522.80 = 58,690,384.80 : x
  2. Step 2: Convert to fraction form
    99,631,024.80/149,509,522.80 = 58,690,384.80/x
  3. Step 3: Cross multiply
    99,631,024.80x = 149,509,522.80 × 58,690,384.80
  4. Step 4: Simplify right side
    99,631,024.80x = 8,774,771,424,396,374
  5. Step 5: Solve for x
    x = 8,774,771,424,396,374/99,631,024.80
  6. Step 6: Final answer
    x = 88,072,680.59

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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.