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Finding the Fourth Proportional to 93,446.66, 128,956.86 and 51,005.19

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Solution

The fourth proportional to 93,446.66, 128,956.86 and 51,005.19 is: 70,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,446.66 : 128,956.86 = 51,005.19 : x
  2. Step 2: Convert to fraction form
    93,446.66/128,956.86 = 51,005.19/x
  3. Step 3: Cross multiply
    93,446.66x = 128,956.86 × 51,005.19
  4. Step 4: Simplify right side
    93,446.66x = 6,577,469,629.69
  5. Step 5: Solve for x
    x = 6,577,469,629.69/93,446.66
  6. Step 6: Final answer
    x = 70,387.42

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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.