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Finding the Fourth Proportional to 93,135.66, 128,523.39 and 52,848.57

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Solution

The fourth proportional to 93,135.66, 128,523.39 and 52,848.57 is: 72,928.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,135.66 : 128,523.39 = 52,848.57 : x
  2. Step 2: Convert to fraction form
    93,135.66/128,523.39 = 52,848.57/x
  3. Step 3: Cross multiply
    93,135.66x = 128,523.39 × 52,848.57
  4. Step 4: Simplify right side
    93,135.66x = 6,792,277,373.05
  5. Step 5: Solve for x
    x = 6,792,277,373.05/93,135.66
  6. Step 6: Final answer
    x = 72,928.86

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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.