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Finding the Fourth Proportional to 93,472.38, 128,994.73 and 53,191.94

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Solution

The fourth proportional to 93,472.38, 128,994.73 and 53,191.94 is: 73,406.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,472.38 : 128,994.73 = 53,191.94 : x
  2. Step 2: Convert to fraction form
    93,472.38/128,994.73 = 53,191.94/x
  3. Step 3: Cross multiply
    93,472.38x = 128,994.73 × 53,191.94
  4. Step 4: Simplify right side
    93,472.38x = 6,861,479,886.12
  5. Step 5: Solve for x
    x = 6,861,479,886.12/93,472.38
  6. Step 6: Final answer
    x = 73,406.50

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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.