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Finding the Fourth Proportional to 167,973,885.60, 252,072,802.80 and 77,050,672.80

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Solution

The fourth proportional to 167,973,885.60, 252,072,802.80 and 77,050,672.80 is: 115,627,372.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,973,885.60 : 252,072,802.80 = 77,050,672.80 : x
  2. Step 2: Convert to fraction form
    167,973,885.60/252,072,802.80 = 77,050,672.80/x
  3. Step 3: Cross multiply
    167,973,885.60x = 252,072,802.80 × 77,050,672.80
  4. Step 4: Simplify right side
    167,973,885.60x = 19,422,379,050,321,724
  5. Step 5: Solve for x
    x = 19,422,379,050,321,724/167,973,885.60
  6. Step 6: Final answer
    x = 115,627,372.56

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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.