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Finding the Fourth Proportional to 55,470.60, 83,205.90 and 45,629.10

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Solution

The fourth proportional to 55,470.60, 83,205.90 and 45,629.10 is: 68,443.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,470.60 : 83,205.90 = 45,629.10 : x
  2. Step 2: Convert to fraction form
    55,470.60/83,205.90 = 45,629.10/x
  3. Step 3: Cross multiply
    55,470.60x = 83,205.90 × 45,629.10
  4. Step 4: Simplify right side
    55,470.60x = 3,796,610,331.69
  5. Step 5: Solve for x
    x = 3,796,610,331.69/55,470.60
  6. Step 6: Final answer
    x = 68,443.65

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1.5x scale

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.