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Finding the Fourth Proportional to 72,922.16, 100,632.12 and 41,101.40

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Solution

The fourth proportional to 72,922.16, 100,632.12 and 41,101.40 is: 56,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,922.16 : 100,632.12 = 41,101.40 : x
  2. Step 2: Convert to fraction form
    72,922.16/100,632.12 = 41,101.40/x
  3. Step 3: Cross multiply
    72,922.16x = 100,632.12 × 41,101.40
  4. Step 4: Simplify right side
    72,922.16x = 4,136,121,016.97
  5. Step 5: Solve for x
    x = 4,136,121,016.97/72,922.16
  6. Step 6: Final answer
    x = 56,719.67

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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.