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Finding the Fourth Proportional to 78,500.50, 108,330.69 and 44,968.66

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Solution

The fourth proportional to 78,500.50, 108,330.69 and 44,968.66 is: 62,056.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,500.50 : 108,330.69 = 44,968.66 : x
  2. Step 2: Convert to fraction form
    78,500.50/108,330.69 = 44,968.66/x
  3. Step 3: Cross multiply
    78,500.50x = 108,330.69 × 44,968.66
  4. Step 4: Simplify right side
    78,500.50x = 4,871,485,966.18
  5. Step 5: Solve for x
    x = 4,871,485,966.18/78,500.50
  6. Step 6: Final answer
    x = 62,056.75

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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.