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Finding the Fourth Proportional to 125,566.83, 173,327.72 and 83,139.03

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Solution

The fourth proportional to 125,566.83, 173,327.72 and 83,139.03 is: 114,761.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,566.83 : 173,327.72 = 83,139.03 : x
  2. Step 2: Convert to fraction form
    125,566.83/173,327.72 = 83,139.03/x
  3. Step 3: Cross multiply
    125,566.83x = 173,327.72 × 83,139.03
  4. Step 4: Simplify right side
    125,566.83x = 14,410,298,097.22
  5. Step 5: Solve for x
    x = 14,410,298,097.22/125,566.83
  6. Step 6: Final answer
    x = 114,761.98

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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.