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Finding the Fourth Proportional to 93,193.68, 128,617.56 and 57,376.56

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Solution

The fourth proportional to 93,193.68, 128,617.56 and 57,376.56 is: 79,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,193.68 : 128,617.56 = 57,376.56 : x
  2. Step 2: Convert to fraction form
    93,193.68/128,617.56 = 57,376.56/x
  3. Step 3: Cross multiply
    93,193.68x = 128,617.56 × 57,376.56
  4. Step 4: Simplify right side
    93,193.68x = 7,379,633,148.39
  5. Step 5: Solve for x
    x = 7,379,633,148.39/93,193.68
  6. Step 6: Final answer
    x = 79,185.98

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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.