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Finding the Fourth Proportional to 216,316.98, 324,119.63 and 74,083.82

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Solution

The fourth proportional to 216,316.98, 324,119.63 and 74,083.82 is: 111,003.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,316.98 : 324,119.63 = 74,083.82 : x
  2. Step 2: Convert to fraction form
    216,316.98/324,119.63 = 74,083.82/x
  3. Step 3: Cross multiply
    216,316.98x = 324,119.63 × 74,083.82
  4. Step 4: Simplify right side
    216,316.98x = 24,012,018,475.28
  5. Step 5: Solve for x
    x = 24,012,018,475.28/216,316.98
  6. Step 6: Final answer
    x = 111,003.85

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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.