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Finding the Fourth Proportional to 82,745.10, 124,117.65 and 73,559.70

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Solution

The fourth proportional to 82,745.10, 124,117.65 and 73,559.70 is: 110,339.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,745.10 : 124,117.65 = 73,559.70 : x
  2. Step 2: Convert to fraction form
    82,745.10/124,117.65 = 73,559.70/x
  3. Step 3: Cross multiply
    82,745.10x = 124,117.65 × 73,559.70
  4. Step 4: Simplify right side
    82,745.10x = 9,130,057,098.71
  5. Step 5: Solve for x
    x = 9,130,057,098.71/82,745.10
  6. Step 6: Final answer
    x = 110,339.55

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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.