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Finding the Fourth Proportional to 114,765.40, 158,331.90 and 84,622.06

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Solution

The fourth proportional to 114,765.40, 158,331.90 and 84,622.06 is: 116,745.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,765.40 : 158,331.90 = 84,622.06 : x
  2. Step 2: Convert to fraction form
    114,765.40/158,331.90 = 84,622.06/x
  3. Step 3: Cross multiply
    114,765.40x = 158,331.90 × 84,622.06
  4. Step 4: Simplify right side
    114,765.40x = 13,398,371,541.71
  5. Step 5: Solve for x
    x = 13,398,371,541.71/114,765.40
  6. Step 6: Final answer
    x = 116,745.74

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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.