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Finding the Fourth Proportional to 71,763,944.40, 107,645,916.60 and 71,763,944.40

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Solution

The fourth proportional to 71,763,944.40, 107,645,916.60 and 71,763,944.40 is: 107,645,916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,763,944.40 : 107,645,916.60 = 71,763,944.40 : x
  2. Step 2: Convert to fraction form
    71,763,944.40/107,645,916.60 = 71,763,944.40/x
  3. Step 3: Cross multiply
    71,763,944.40x = 107,645,916.60 × 71,763,944.40
  4. Step 4: Simplify right side
    71,763,944.40x = 7,725,095,573,769,437
  5. Step 5: Solve for x
    x = 7,725,095,573,769,437/71,763,944.40
  6. Step 6: Final answer
    x = 107,645,916.60

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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.