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Finding the Fourth Proportional to 93,325.09, 128,788.67 and 53,037.82

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Solution

The fourth proportional to 93,325.09, 128,788.67 and 53,037.82 is: 73,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,325.09 : 128,788.67 = 53,037.82 : x
  2. Step 2: Convert to fraction form
    93,325.09/128,788.67 = 53,037.82/x
  3. Step 3: Cross multiply
    93,325.09x = 128,788.67 × 53,037.82
  4. Step 4: Simplify right side
    93,325.09x = 6,830,670,297.50
  5. Step 5: Solve for x
    x = 6,830,670,297.50/93,325.09
  6. Step 6: Final answer
    x = 73,192.22

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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.