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Finding the Fourth Proportional to 97,485.70, 134,515.10 and 55,043.32

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Solution

The fourth proportional to 97,485.70, 134,515.10 and 55,043.32 is: 75,951.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,485.70 : 134,515.10 = 55,043.32 : x
  2. Step 2: Convert to fraction form
    97,485.70/134,515.10 = 55,043.32/x
  3. Step 3: Cross multiply
    97,485.70x = 134,515.10 × 55,043.32
  4. Step 4: Simplify right side
    97,485.70x = 7,404,157,694.13
  5. Step 5: Solve for x
    x = 7,404,157,694.13/97,485.70
  6. Step 6: Final answer
    x = 75,951.22

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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.