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Finding the Fourth Proportional to 93,376.72, 128,859.42 and 50,934.88

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Solution

The fourth proportional to 93,376.72, 128,859.42 and 50,934.88 is: 70,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,376.72 : 128,859.42 = 50,934.88 : x
  2. Step 2: Convert to fraction form
    93,376.72/128,859.42 = 50,934.88/x
  3. Step 3: Cross multiply
    93,376.72x = 128,859.42 × 50,934.88
  4. Step 4: Simplify right side
    93,376.72x = 6,563,439,094.57
  5. Step 5: Solve for x
    x = 6,563,439,094.57/93,376.72
  6. Step 6: Final answer
    x = 70,289.89

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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.