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Finding the Fourth Proportional to 93,026.16, 128,331 and 55,273.68

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Solution

The fourth proportional to 93,026.16, 128,331 and 55,273.68 is: 76,250.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,026.16 : 128,331 = 55,273.68 : x
  2. Step 2: Convert to fraction form
    93,026.16/128,331 = 55,273.68/x
  3. Step 3: Cross multiply
    93,026.16x = 128,331 × 55,273.68
  4. Step 4: Simplify right side
    93,026.16x = 7,093,326,628.08
  5. Step 5: Solve for x
    x = 7,093,326,628.08/93,026.16
  6. Step 6: Final answer
    x = 76,250.88

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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.