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Finding the Fourth Proportional to 93,138.41, 128,527.43 and 52,849.77

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Solution

The fourth proportional to 93,138.41, 128,527.43 and 52,849.77 is: 72,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,138.41 : 128,527.43 = 52,849.77 : x
  2. Step 2: Convert to fraction form
    93,138.41/128,527.43 = 52,849.77/x
  3. Step 3: Cross multiply
    93,138.41x = 128,527.43 × 52,849.77
  4. Step 4: Simplify right side
    93,138.41x = 6,792,645,114.19
  5. Step 5: Solve for x
    x = 6,792,645,114.19/93,138.41
  6. Step 6: Final answer
    x = 72,930.65

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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.