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Finding the Fourth Proportional to 78,622.65, 108,501.93 and 44,173.45

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Solution

The fourth proportional to 78,622.65, 108,501.93 and 44,173.45 is: 60,960.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,622.65 : 108,501.93 = 44,173.45 : x
  2. Step 2: Convert to fraction form
    78,622.65/108,501.93 = 44,173.45/x
  3. Step 3: Cross multiply
    78,622.65x = 108,501.93 × 44,173.45
  4. Step 4: Simplify right side
    78,622.65x = 4,792,904,715.39
  5. Step 5: Solve for x
    x = 4,792,904,715.39/78,622.65
  6. Step 6: Final answer
    x = 60,960.86

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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.