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Finding the Fourth Proportional to 72,462.60, 98,135.55 and 72,462.60

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Solution

The fourth proportional to 72,462.60, 98,135.55 and 72,462.60 is: 98,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,462.60 : 98,135.55 = 72,462.60 : x
  2. Step 2: Convert to fraction form
    72,462.60/98,135.55 = 72,462.60/x
  3. Step 3: Cross multiply
    72,462.60x = 98,135.55 × 72,462.60
  4. Step 4: Simplify right side
    72,462.60x = 7,111,157,105.43
  5. Step 5: Solve for x
    x = 7,111,157,105.43/72,462.60
  6. Step 6: Final answer
    x = 98,135.55

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.