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Finding the Fourth Proportional to 178,009.36, 245,659.68 and 101,540.90

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Solution

The fourth proportional to 178,009.36, 245,659.68 and 101,540.90 is: 140,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,009.36 : 245,659.68 = 101,540.90 : x
  2. Step 2: Convert to fraction form
    178,009.36/245,659.68 = 101,540.90/x
  3. Step 3: Cross multiply
    178,009.36x = 245,659.68 × 101,540.90
  4. Step 4: Simplify right side
    178,009.36x = 24,944,505,000.91
  5. Step 5: Solve for x
    x = 24,944,505,000.91/178,009.36
  6. Step 6: Final answer
    x = 140,130.30

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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.