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Finding the Fourth Proportional to 45,783.55, 68,723.86 and 40,552.50

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Solution

The fourth proportional to 45,783.55, 68,723.86 and 40,552.50 is: 60,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,783.55 : 68,723.86 = 40,552.50 : x
  2. Step 2: Convert to fraction form
    45,783.55/68,723.86 = 40,552.50/x
  3. Step 3: Cross multiply
    45,783.55x = 68,723.86 × 40,552.50
  4. Step 4: Simplify right side
    45,783.55x = 2,786,924,332.65
  5. Step 5: Solve for x
    x = 2,786,924,332.65/45,783.55
  6. Step 6: Final answer
    x = 60,871.74

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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.