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Finding the Fourth Proportional to 93,348.41, 128,828.46 and 53,074.81

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Solution

The fourth proportional to 93,348.41, 128,828.46 and 53,074.81 is: 73,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,348.41 : 128,828.46 = 53,074.81 : x
  2. Step 2: Convert to fraction form
    93,348.41/128,828.46 = 53,074.81/x
  3. Step 3: Cross multiply
    93,348.41x = 128,828.46 × 53,074.81
  4. Step 4: Simplify right side
    93,348.41x = 6,837,546,037.09
  5. Step 5: Solve for x
    x = 6,837,546,037.09/93,348.41
  6. Step 6: Final answer
    x = 73,247.59

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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.