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Finding the Fourth Proportional to 97,457.76, 134,491.50 and 55,015.38

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Solution

The fourth proportional to 97,457.76, 134,491.50 and 55,015.38 is: 75,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,457.76 : 134,491.50 = 55,015.38 : x
  2. Step 2: Convert to fraction form
    97,457.76/134,491.50 = 55,015.38/x
  3. Step 3: Cross multiply
    97,457.76x = 134,491.50 × 55,015.38
  4. Step 4: Simplify right side
    97,457.76x = 7,399,100,979.27
  5. Step 5: Solve for x
    x = 7,399,100,979.27/97,457.76
  6. Step 6: Final answer
    x = 75,921.11

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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.