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Finding the Fourth Proportional to 93,228.59, 128,654.29 and 50,786.21

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Solution

The fourth proportional to 93,228.59, 128,654.29 and 50,786.21 is: 70,084.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,228.59 : 128,654.29 = 50,786.21 : x
  2. Step 2: Convert to fraction form
    93,228.59/128,654.29 = 50,786.21/x
  3. Step 3: Cross multiply
    93,228.59x = 128,654.29 × 50,786.21
  4. Step 4: Simplify right side
    93,228.59x = 6,533,863,789.34
  5. Step 5: Solve for x
    x = 6,533,863,789.34/93,228.59
  6. Step 6: Final answer
    x = 70,084.34

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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.