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Finding the Fourth Proportional to 73,200.50, 109,800.75 and 23,280.70

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Solution

The fourth proportional to 73,200.50, 109,800.75 and 23,280.70 is: 34,921.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,200.50 : 109,800.75 = 23,280.70 : x
  2. Step 2: Convert to fraction form
    73,200.50/109,800.75 = 23,280.70/x
  3. Step 3: Cross multiply
    73,200.50x = 109,800.75 × 23,280.70
  4. Step 4: Simplify right side
    73,200.50x = 2,556,238,320.53
  5. Step 5: Solve for x
    x = 2,556,238,320.53/73,200.50
  6. Step 6: Final answer
    x = 34,921.05

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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.