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Finding the Fourth Proportional to 881,105.70, 1,318,706.10 and 881,105.70

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Solution

The fourth proportional to 881,105.70, 1,318,706.10 and 881,105.70 is: 1,318,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,105.70 : 1,318,706.10 = 881,105.70 : x
  2. Step 2: Convert to fraction form
    881,105.70/1,318,706.10 = 881,105.70/x
  3. Step 3: Cross multiply
    881,105.70x = 1,318,706.10 × 881,105.70
  4. Step 4: Simplify right side
    881,105.70x = 1,161,919,461,334.77
  5. Step 5: Solve for x
    x = 1,161,919,461,334.77/881,105.70
  6. Step 6: Final answer
    x = 1,318,706.10

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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.