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Finding the Fourth Proportional to 60,732.84, 91,113.75 and 19,179.84

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Solution

The fourth proportional to 60,732.84, 91,113.75 and 19,179.84 is: 28,774.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,732.84 : 91,113.75 = 19,179.84 : x
  2. Step 2: Convert to fraction form
    60,732.84/91,113.75 = 19,179.84/x
  3. Step 3: Cross multiply
    60,732.84x = 91,113.75 × 19,179.84
  4. Step 4: Simplify right side
    60,732.84x = 1,747,547,146.80
  5. Step 5: Solve for x
    x = 1,747,547,146.80/60,732.84
  6. Step 6: Final answer
    x = 28,774.34

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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.