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Finding the Fourth Proportional to 216,844.10, 325,266.15 and 76,616.90

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Solution

The fourth proportional to 216,844.10, 325,266.15 and 76,616.90 is: 114,925.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,844.10 : 325,266.15 = 76,616.90 : x
  2. Step 2: Convert to fraction form
    216,844.10/325,266.15 = 76,616.90/x
  3. Step 3: Cross multiply
    216,844.10x = 325,266.15 × 76,616.90
  4. Step 4: Simplify right side
    216,844.10x = 24,920,884,087.94
  5. Step 5: Solve for x
    x = 24,920,884,087.94/216,844.10
  6. Step 6: Final answer
    x = 114,925.35

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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.