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Finding the Fourth Proportional to 55,370.60, 83,055.90 and 45,529.10

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Solution

The fourth proportional to 55,370.60, 83,055.90 and 45,529.10 is: 68,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,370.60 : 83,055.90 = 45,529.10 : x
  2. Step 2: Convert to fraction form
    55,370.60/83,055.90 = 45,529.10/x
  3. Step 3: Cross multiply
    55,370.60x = 83,055.90 × 45,529.10
  4. Step 4: Simplify right side
    55,370.60x = 3,781,460,376.69
  5. Step 5: Solve for x
    x = 3,781,460,376.69/55,370.60
  6. Step 6: Final answer
    x = 68,293.65

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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.