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Finding the Fourth Proportional to 178,165.12, 245,871.83 and 101,682.69

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Solution

The fourth proportional to 178,165.12, 245,871.83 and 101,682.69 is: 140,324.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,165.12 : 245,871.83 = 101,682.69 : x
  2. Step 2: Convert to fraction form
    178,165.12/245,871.83 = 101,682.69/x
  3. Step 3: Cross multiply
    178,165.12x = 245,871.83 × 101,682.69
  4. Step 4: Simplify right side
    178,165.12x = 25,000,908,561.21
  5. Step 5: Solve for x
    x = 25,000,908,561.21/178,165.12
  6. Step 6: Final answer
    x = 140,324.37

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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.