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Finding the Fourth Proportional to 93,172.34, 128,579.39 and 52,887.34

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Solution

The fourth proportional to 93,172.34, 128,579.39 and 52,887.34 is: 72,985.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,172.34 : 128,579.39 = 52,887.34 : x
  2. Step 2: Convert to fraction form
    93,172.34/128,579.39 = 52,887.34/x
  3. Step 3: Cross multiply
    93,172.34x = 128,579.39 × 52,887.34
  4. Step 4: Simplify right side
    93,172.34x = 6,800,222,010.54
  5. Step 5: Solve for x
    x = 6,800,222,010.54/93,172.34
  6. Step 6: Final answer
    x = 72,985.41

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1.5x scale

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.