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Finding the Fourth Proportional to 52,392.51, 78,208.39 and 48,489.53

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Solution

The fourth proportional to 52,392.51, 78,208.39 and 48,489.53 is: 72,382.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,392.51 : 78,208.39 = 48,489.53 : x
  2. Step 2: Convert to fraction form
    52,392.51/78,208.39 = 48,489.53/x
  3. Step 3: Cross multiply
    52,392.51x = 78,208.39 × 48,489.53
  4. Step 4: Simplify right side
    52,392.51x = 3,792,287,635.19
  5. Step 5: Solve for x
    x = 3,792,287,635.19/52,392.51
  6. Step 6: Final answer
    x = 72,382.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.