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Finding the Fourth Proportional to 78,776.84, 108,734.52 and 44,803.64

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Solution

The fourth proportional to 78,776.84, 108,734.52 and 44,803.64 is: 61,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,776.84 : 108,734.52 = 44,803.64 : x
  2. Step 2: Convert to fraction form
    78,776.84/108,734.52 = 44,803.64/x
  3. Step 3: Cross multiply
    78,776.84x = 108,734.52 × 44,803.64
  4. Step 4: Simplify right side
    78,776.84x = 4,871,702,289.65
  5. Step 5: Solve for x
    x = 4,871,702,289.65/78,776.84
  6. Step 6: Final answer
    x = 61,841.81

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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.