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Finding the Fourth Proportional to 124,065.34, 171,129.41 and 73,035.03

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Solution

The fourth proportional to 124,065.34, 171,129.41 and 73,035.03 is: 100,740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,065.34 : 171,129.41 = 73,035.03 : x
  2. Step 2: Convert to fraction form
    124,065.34/171,129.41 = 73,035.03/x
  3. Step 3: Cross multiply
    124,065.34x = 171,129.41 × 73,035.03
  4. Step 4: Simplify right side
    124,065.34x = 12,498,442,143.67
  5. Step 5: Solve for x
    x = 12,498,442,143.67/124,065.34
  6. Step 6: Final answer
    x = 100,740.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.