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Finding the Fourth Proportional to 135,445.92, 203,155.92 and 46,687.20

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Solution

The fourth proportional to 135,445.92, 203,155.92 and 46,687.20 is: 70,026.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,445.92 : 203,155.92 = 46,687.20 : x
  2. Step 2: Convert to fraction form
    135,445.92/203,155.92 = 46,687.20/x
  3. Step 3: Cross multiply
    135,445.92x = 203,155.92 × 46,687.20
  4. Step 4: Simplify right side
    135,445.92x = 9,484,781,068.22
  5. Step 5: Solve for x
    x = 9,484,781,068.22/135,445.92
  6. Step 6: Final answer
    x = 70,026.33

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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.