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Finding the Fourth Proportional to 167,985,781.60, 251,978,672.40 and 46,817,233.60

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Solution

The fourth proportional to 167,985,781.60, 251,978,672.40 and 46,817,233.60 is: 70,225,850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,985,781.60 : 251,978,672.40 = 46,817,233.60 : x
  2. Step 2: Convert to fraction form
    167,985,781.60/251,978,672.40 = 46,817,233.60/x
  3. Step 3: Cross multiply
    167,985,781.60x = 251,978,672.40 × 46,817,233.60
  4. Step 4: Simplify right side
    167,985,781.60x = 11,796,944,367,968,674
  5. Step 5: Solve for x
    x = 11,796,944,367,968,674/167,985,781.60
  6. Step 6: Final answer
    x = 70,225,850.40

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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.