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Finding the Fourth Proportional to 117,968.54, 162,798.48 and 64,254.60

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Solution

The fourth proportional to 117,968.54, 162,798.48 and 64,254.60 is: 88,672.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,968.54 : 162,798.48 = 64,254.60 : x
  2. Step 2: Convert to fraction form
    117,968.54/162,798.48 = 64,254.60/x
  3. Step 3: Cross multiply
    117,968.54x = 162,798.48 × 64,254.60
  4. Step 4: Simplify right side
    117,968.54x = 10,460,551,213.01
  5. Step 5: Solve for x
    x = 10,460,551,213.01/117,968.54
  6. Step 6: Final answer
    x = 88,672.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.