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Finding the Fourth Proportional to 73,993.72, 102,130.32 and 45,683.16

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Solution

The fourth proportional to 73,993.72, 102,130.32 and 45,683.16 is: 63,054.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,993.72 : 102,130.32 = 45,683.16 : x
  2. Step 2: Convert to fraction form
    73,993.72/102,130.32 = 45,683.16/x
  3. Step 3: Cross multiply
    73,993.72x = 102,130.32 × 45,683.16
  4. Step 4: Simplify right side
    73,993.72x = 4,665,635,749.41
  5. Step 5: Solve for x
    x = 4,665,635,749.41/73,993.72
  6. Step 6: Final answer
    x = 63,054.48

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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.