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Finding the Fourth Proportional to 434,548.40, 651,822.60 and 135,026.60

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Solution

The fourth proportional to 434,548.40, 651,822.60 and 135,026.60 is: 202,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,548.40 : 651,822.60 = 135,026.60 : x
  2. Step 2: Convert to fraction form
    434,548.40/651,822.60 = 135,026.60/x
  3. Step 3: Cross multiply
    434,548.40x = 651,822.60 × 135,026.60
  4. Step 4: Simplify right side
    434,548.40x = 88,013,389,481.16
  5. Step 5: Solve for x
    x = 88,013,389,481.16/434,548.40
  6. Step 6: Final answer
    x = 202,539.90

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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.