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Finding the Fourth Proportional to 93,015.79, 128,360.89 and 50,574.32

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Solution

The fourth proportional to 93,015.79, 128,360.89 and 50,574.32 is: 69,792.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,015.79 : 128,360.89 = 50,574.32 : x
  2. Step 2: Convert to fraction form
    93,015.79/128,360.89 = 50,574.32/x
  3. Step 3: Cross multiply
    93,015.79x = 128,360.89 × 50,574.32
  4. Step 4: Simplify right side
    93,015.79x = 6,491,764,473.47
  5. Step 5: Solve for x
    x = 6,491,764,473.47/93,015.79
  6. Step 6: Final answer
    x = 69,792.07

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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.