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Finding the Fourth Proportional to 73,069.45, 100,825.72 and 40,800.13

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Solution

The fourth proportional to 73,069.45, 100,825.72 and 40,800.13 is: 56,298.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,069.45 : 100,825.72 = 40,800.13 : x
  2. Step 2: Convert to fraction form
    73,069.45/100,825.72 = 40,800.13/x
  3. Step 3: Cross multiply
    73,069.45x = 100,825.72 × 40,800.13
  4. Step 4: Simplify right side
    73,069.45x = 4,113,702,483.34
  5. Step 5: Solve for x
    x = 4,113,702,483.34/73,069.45
  6. Step 6: Final answer
    x = 56,298.53

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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.