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Finding the Fourth Proportional to 216,672.30, 325,015.56 and 74,516.16

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Solution

The fourth proportional to 216,672.30, 325,015.56 and 74,516.16 is: 111,776.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,672.30 : 325,015.56 = 74,516.16 : x
  2. Step 2: Convert to fraction form
    216,672.30/325,015.56 = 74,516.16/x
  3. Step 3: Cross multiply
    216,672.30x = 325,015.56 × 74,516.16
  4. Step 4: Simplify right side
    216,672.30x = 24,218,911,471.45
  5. Step 5: Solve for x
    x = 24,218,911,471.45/216,672.30
  6. Step 6: Final answer
    x = 111,776.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.