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Finding the Fourth Proportional to 97,478.44, 134,520.28 and 55,039.70

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Solution

The fourth proportional to 97,478.44, 134,520.28 and 55,039.70 is: 75,954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,478.44 : 134,520.28 = 55,039.70 : x
  2. Step 2: Convert to fraction form
    97,478.44/134,520.28 = 55,039.70/x
  3. Step 3: Cross multiply
    97,478.44x = 134,520.28 × 55,039.70
  4. Step 4: Simplify right side
    97,478.44x = 7,403,956,053.82
  5. Step 5: Solve for x
    x = 7,403,956,053.82/97,478.44
  6. Step 6: Final answer
    x = 75,954.81

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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.