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Finding the Fourth Proportional to 93,179.81, 128,588.65 and 50,738.36

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Solution

The fourth proportional to 93,179.81, 128,588.65 and 50,738.36 is: 70,019.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,179.81 : 128,588.65 = 50,738.36 : x
  2. Step 2: Convert to fraction form
    93,179.81/128,588.65 = 50,738.36/x
  3. Step 3: Cross multiply
    93,179.81x = 128,588.65 × 50,738.36
  4. Step 4: Simplify right side
    93,179.81x = 6,524,376,445.82
  5. Step 5: Solve for x
    x = 6,524,376,445.82/93,179.81
  6. Step 6: Final answer
    x = 70,019.21

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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.