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Finding the Fourth Proportional to 104,062.80, 145,503.60 and 104,062.80

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Solution

The fourth proportional to 104,062.80, 145,503.60 and 104,062.80 is: 145,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,062.80 : 145,503.60 = 104,062.80 : x
  2. Step 2: Convert to fraction form
    104,062.80/145,503.60 = 104,062.80/x
  3. Step 3: Cross multiply
    104,062.80x = 145,503.60 × 104,062.80
  4. Step 4: Simplify right side
    104,062.80x = 15,141,512,026.08
  5. Step 5: Solve for x
    x = 15,141,512,026.08/104,062.80
  6. Step 6: Final answer
    x = 145,503.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.