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Finding the Fourth Proportional to 130,358.88, 179,893.68 and 73,768.80

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Solution

The fourth proportional to 130,358.88, 179,893.68 and 73,768.80 is: 101,800.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,358.88 : 179,893.68 = 73,768.80 : x
  2. Step 2: Convert to fraction form
    130,358.88/179,893.68 = 73,768.80/x
  3. Step 3: Cross multiply
    130,358.88x = 179,893.68 × 73,768.80
  4. Step 4: Simplify right side
    130,358.88x = 13,270,540,901.18
  5. Step 5: Solve for x
    x = 13,270,540,901.18/130,358.88
  6. Step 6: Final answer
    x = 101,800.05

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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.