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Finding the Fourth Proportional to 113,010.34, 155,961.56 and 62,709.34

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Solution

The fourth proportional to 113,010.34, 155,961.56 and 62,709.34 is: 86,542.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,010.34 : 155,961.56 = 62,709.34 : x
  2. Step 2: Convert to fraction form
    113,010.34/155,961.56 = 62,709.34/x
  3. Step 3: Cross multiply
    113,010.34x = 155,961.56 × 62,709.34
  4. Step 4: Simplify right side
    113,010.34x = 9,780,246,492.97
  5. Step 5: Solve for x
    x = 9,780,246,492.97/113,010.34
  6. Step 6: Final answer
    x = 86,542.93

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1.5x scale

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.