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Finding the Fourth Proportional to 93,201.12, 128,620.76 and 52,913.54

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Solution

The fourth proportional to 93,201.12, 128,620.76 and 52,913.54 is: 73,022.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,201.12 : 128,620.76 = 52,913.54 : x
  2. Step 2: Convert to fraction form
    93,201.12/128,620.76 = 52,913.54/x
  3. Step 3: Cross multiply
    93,201.12x = 128,620.76 × 52,913.54
  4. Step 4: Simplify right side
    93,201.12x = 6,805,778,821.42
  5. Step 5: Solve for x
    x = 6,805,778,821.42/93,201.12
  6. Step 6: Final answer
    x = 73,022.50

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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.