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Finding the Fourth Proportional to 292,611.45, 438,851.42 and 174,316.41

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Solution

The fourth proportional to 292,611.45, 438,851.42 and 174,316.41 is: 261,435.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,611.45 : 438,851.42 = 174,316.41 : x
  2. Step 2: Convert to fraction form
    292,611.45/438,851.42 = 174,316.41/x
  3. Step 3: Cross multiply
    292,611.45x = 438,851.42 × 174,316.41
  4. Step 4: Simplify right side
    292,611.45x = 76,499,003,186.22
  5. Step 5: Solve for x
    x = 76,499,003,186.22/292,611.45
  6. Step 6: Final answer
    x = 261,435.44

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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.