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Finding the Fourth Proportional to 125,460.40, 173,123.84 and 74,464.42

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Solution

The fourth proportional to 125,460.40, 173,123.84 and 74,464.42 is: 102,754.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,460.40 : 173,123.84 = 74,464.42 : x
  2. Step 2: Convert to fraction form
    125,460.40/173,123.84 = 74,464.42/x
  3. Step 3: Cross multiply
    125,460.40x = 173,123.84 × 74,464.42
  4. Step 4: Simplify right side
    125,460.40x = 12,891,566,087.12
  5. Step 5: Solve for x
    x = 12,891,566,087.12/125,460.40
  6. Step 6: Final answer
    x = 102,754.07

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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.