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Finding the Fourth Proportional to 54,318,829.70, 81,478,244.55 and 54,318,829.70

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Solution

The fourth proportional to 54,318,829.70, 81,478,244.55 and 54,318,829.70 is: 81,478,244.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,318,829.70 : 81,478,244.55 = 54,318,829.70 : x
  2. Step 2: Convert to fraction form
    54,318,829.70/81,478,244.55 = 54,318,829.70/x
  3. Step 3: Cross multiply
    54,318,829.70x = 81,478,244.55 × 54,318,829.70
  4. Step 4: Simplify right side
    54,318,829.70x = 4,425,802,889,966,403
  5. Step 5: Solve for x
    x = 4,425,802,889,966,403/54,318,829.70
  6. Step 6: Final answer
    x = 81,478,244.55

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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.