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Finding the Fourth Proportional to 74,516.68, 102,824.40 and 42,683.68

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Solution

The fourth proportional to 74,516.68, 102,824.40 and 42,683.68 is: 58,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,516.68 : 102,824.40 = 42,683.68 : x
  2. Step 2: Convert to fraction form
    74,516.68/102,824.40 = 42,683.68/x
  3. Step 3: Cross multiply
    74,516.68x = 102,824.40 × 42,683.68
  4. Step 4: Simplify right side
    74,516.68x = 4,388,923,785.79
  5. Step 5: Solve for x
    x = 4,388,923,785.79/74,516.68
  6. Step 6: Final answer
    x = 58,898.54

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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.