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Finding the Fourth Proportional to 94,712.87, 130,720.70 and 56,474.88

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Solution

The fourth proportional to 94,712.87, 130,720.70 and 56,474.88 is: 77,945.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,712.87 : 130,720.70 = 56,474.88 : x
  2. Step 2: Convert to fraction form
    94,712.87/130,720.70 = 56,474.88/x
  3. Step 3: Cross multiply
    94,712.87x = 130,720.70 × 56,474.88
  4. Step 4: Simplify right side
    94,712.87x = 7,382,435,563.64
  5. Step 5: Solve for x
    x = 7,382,435,563.64/94,712.87
  6. Step 6: Final answer
    x = 77,945.43

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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.