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Finding the Fourth Proportional to 113,010.84, 155,962.25 and 62,709.84

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Solution

The fourth proportional to 113,010.84, 155,962.25 and 62,709.84 is: 86,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,010.84 : 155,962.25 = 62,709.84 : x
  2. Step 2: Convert to fraction form
    113,010.84/155,962.25 = 62,709.84/x
  3. Step 3: Cross multiply
    113,010.84x = 155,962.25 × 62,709.84
  4. Step 4: Simplify right side
    113,010.84x = 9,780,367,743.54
  5. Step 5: Solve for x
    x = 9,780,367,743.54/113,010.84
  6. Step 6: Final answer
    x = 86,543.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.