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Finding the Fourth Proportional to 267,090.54, 368,602.71 and 153,920.58

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Solution

The fourth proportional to 267,090.54, 368,602.71 and 153,920.58 is: 212,420.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,090.54 : 368,602.71 = 153,920.58 : x
  2. Step 2: Convert to fraction form
    267,090.54/368,602.71 = 153,920.58/x
  3. Step 3: Cross multiply
    267,090.54x = 368,602.71 × 153,920.58
  4. Step 4: Simplify right side
    267,090.54x = 56,735,542,912.77
  5. Step 5: Solve for x
    x = 56,735,542,912.77/267,090.54
  6. Step 6: Final answer
    x = 212,420.64

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1.5x scale

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.