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Finding the Fourth Proportional to 93,958.62, 129,679.47 and 56,232.78

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Solution

The fourth proportional to 93,958.62, 129,679.47 and 56,232.78 is: 77,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,958.62 : 129,679.47 = 56,232.78 : x
  2. Step 2: Convert to fraction form
    93,958.62/129,679.47 = 56,232.78/x
  3. Step 3: Cross multiply
    93,958.62x = 129,679.47 × 56,232.78
  4. Step 4: Simplify right side
    93,958.62x = 7,292,237,107.03
  5. Step 5: Solve for x
    x = 7,292,237,107.03/93,958.62
  6. Step 6: Final answer
    x = 77,611.16

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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.