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Finding the Fourth Proportional to 93,323.38, 128,763.17 and 57,015.48

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Solution

The fourth proportional to 93,323.38, 128,763.17 and 57,015.48 is: 78,667.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,323.38 : 128,763.17 = 57,015.48 : x
  2. Step 2: Convert to fraction form
    93,323.38/128,763.17 = 57,015.48/x
  3. Step 3: Cross multiply
    93,323.38x = 128,763.17 × 57,015.48
  4. Step 4: Simplify right side
    93,323.38x = 7,341,493,943.87
  5. Step 5: Solve for x
    x = 7,341,493,943.87/93,323.38
  6. Step 6: Final answer
    x = 78,667.25

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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.