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Finding the Fourth Proportional to 216,740.93, 325,113.78 and 96,803.97

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Solution

The fourth proportional to 216,740.93, 325,113.78 and 96,803.97 is: 145,207.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,740.93 : 325,113.78 = 96,803.97 : x
  2. Step 2: Convert to fraction form
    216,740.93/325,113.78 = 96,803.97/x
  3. Step 3: Cross multiply
    216,740.93x = 325,113.78 × 96,803.97
  4. Step 4: Simplify right side
    216,740.93x = 31,472,303,773.94
  5. Step 5: Solve for x
    x = 31,472,303,773.94/216,740.93
  6. Step 6: Final answer
    x = 145,207.02

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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.