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Finding the Fourth Proportional to 93,107.86, 128,491.74 and 52,823.32

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Solution

The fourth proportional to 93,107.86, 128,491.74 and 52,823.32 is: 72,897.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,107.86 : 128,491.74 = 52,823.32 : x
  2. Step 2: Convert to fraction form
    93,107.86/128,491.74 = 52,823.32/x
  3. Step 3: Cross multiply
    93,107.86x = 128,491.74 × 52,823.32
  4. Step 4: Simplify right side
    93,107.86x = 6,787,360,299.38
  5. Step 5: Solve for x
    x = 6,787,360,299.38/93,107.86
  6. Step 6: Final answer
    x = 72,897.82

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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.