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Finding the Fourth Proportional to 216,496.32, 324,661.42 and 74,315.10

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Solution

The fourth proportional to 216,496.32, 324,661.42 and 74,315.10 is: 111,444.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,496.32 : 324,661.42 = 74,315.10 : x
  2. Step 2: Convert to fraction form
    216,496.32/324,661.42 = 74,315.10/x
  3. Step 3: Cross multiply
    216,496.32x = 324,661.42 × 74,315.10
  4. Step 4: Simplify right side
    216,496.32x = 24,127,245,893.44
  5. Step 5: Solve for x
    x = 24,127,245,893.44/216,496.32
  6. Step 6: Final answer
    x = 111,444.14

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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.