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Finding the Fourth Proportional to 174,801,765.60, 261,978,699.60 and 155,542,168.80

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Solution

The fourth proportional to 174,801,765.60, 261,978,699.60 and 155,542,168.80 is: 233,113,979.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,801,765.60 : 261,978,699.60 = 155,542,168.80 : x
  2. Step 2: Convert to fraction form
    174,801,765.60/261,978,699.60 = 155,542,168.80/x
  3. Step 3: Cross multiply
    174,801,765.60x = 261,978,699.60 × 155,542,168.80
  4. Step 4: Simplify right side
    174,801,765.60x = 40,748,735,115,187,696
  5. Step 5: Solve for x
    x = 40,748,735,115,187,696/174,801,765.60
  6. Step 6: Final answer
    x = 233,113,979.00

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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.