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Finding the Fourth Proportional to 115,006.77, 158,712.87 and 62,622.21

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Solution

The fourth proportional to 115,006.77, 158,712.87 and 62,622.21 is: 86,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,006.77 : 158,712.87 = 62,622.21 : x
  2. Step 2: Convert to fraction form
    115,006.77/158,712.87 = 62,622.21/x
  3. Step 3: Cross multiply
    115,006.77x = 158,712.87 × 62,622.21
  4. Step 4: Simplify right side
    115,006.77x = 9,938,951,504.85
  5. Step 5: Solve for x
    x = 9,938,951,504.85/115,006.77
  6. Step 6: Final answer
    x = 86,420.58

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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.