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Finding the Fourth Proportional to 93,018.80, 128,364.56 and 50,576.96

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Solution

The fourth proportional to 93,018.80, 128,364.56 and 50,576.96 is: 69,795.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,018.80 : 128,364.56 = 50,576.96 : x
  2. Step 2: Convert to fraction form
    93,018.80/128,364.56 = 50,576.96/x
  3. Step 3: Cross multiply
    93,018.80x = 128,364.56 × 50,576.96
  4. Step 4: Simplify right side
    93,018.80x = 6,492,289,216.54
  5. Step 5: Solve for x
    x = 6,492,289,216.54/93,018.80
  6. Step 6: Final answer
    x = 69,795.45

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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.