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Finding the Fourth Proportional to 71,766,039.60, 107,649,059.40 and 71,766,039.60

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Solution

The fourth proportional to 71,766,039.60, 107,649,059.40 and 71,766,039.60 is: 107,649,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,766,039.60 : 107,649,059.40 = 71,766,039.60 : x
  2. Step 2: Convert to fraction form
    71,766,039.60/107,649,059.40 = 71,766,039.60/x
  3. Step 3: Cross multiply
    71,766,039.60x = 107,649,059.40 × 71,766,039.60
  4. Step 4: Simplify right side
    71,766,039.60x = 7,725,546,659,803,152
  5. Step 5: Solve for x
    x = 7,725,546,659,803,152/71,766,039.60
  6. Step 6: Final answer
    x = 107,649,059.40

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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.