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Finding the Fourth Proportional to 82,955.60, 124,433.40 and 53,406.80

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Solution

The fourth proportional to 82,955.60, 124,433.40 and 53,406.80 is: 80,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,955.60 : 124,433.40 = 53,406.80 : x
  2. Step 2: Convert to fraction form
    82,955.60/124,433.40 = 53,406.80/x
  3. Step 3: Cross multiply
    82,955.60x = 124,433.40 × 53,406.80
  4. Step 4: Simplify right side
    82,955.60x = 6,645,589,707.12
  5. Step 5: Solve for x
    x = 6,645,589,707.12/82,955.60
  6. Step 6: Final answer
    x = 80,110.20

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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.